Human Anatomy and Physiology MCQ
1. This animation illustrates the functioning of a _____ protein
Transport
Amino acids
Nucleotides
None of these
Answer
Correct Answer:
Transport
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2. An inference is _____
Using what you have read to determine the most important idea in a text
The resolution of a conflict
A logical interpretation
Using what you have read and what you already know to make a judgment about what something means
Answer
Correct Answer:
A logical interpretation
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3. In an atom, the number of neutrons determines most specifically the ________.
Element
Isotope
Ion state
Chemical properties
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4. In the pericardial sac, the ________ lies directly deep to the fibrous pericardium.
Pericardial cavity
Visceral layer of serous pericardium
Parietal layer of the serous pericardium
Epicardium
Answer
Correct Answer:
Parietal layer of the serous pericardium
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5. Without ____ it is impossible to build a trusting relationship with the people you lead.
charisma
strength
intelligence
Character
Answer
Correct Answer:
Character
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6. Bulk flow is fluid flow as a result of a(n) ________ gradient.
Pressure
Concentration
Electrical
None of the above
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7. A(n) ________ digests terminal peptide bonds to release amino acids.
Endopeptidase
Pepsin
Exopeptidase
Trypsin.
Answer
Correct Answer:
Exopeptidase
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8. We can understand the importance of studying human communication by realizing that it is _____.
An innate skill that comes easily for most people
An academic skill used primarily in formal settings
A simple skill that is easily learned and mastered
A complex skill that enables others to connect with us
Answer
Correct Answer:
A complex skill that enables others to connect with us
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9. A graph illustrating the pressure and volume changes during one heartbeat is called the __________.
Murmurs
Cardiac cycle
Diastole
Radial artery
Answer
Correct Answer:
Cardiac cycle
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10. Erection of the penis or clitoris ________.
Is primarily under sympathetic control
Is primarily under parasympathetic control
Is the result of coordinated activation by both sympathetic and parasympathetic input
Depends very little on autonomic activation
Answer
Correct Answer:
Is primarily under sympathetic control
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11. The ________ is a substage lens that concentrates light on the specimen.
Objective lens
Condenser
Light source
Iris diaphragm lever.
Answer
Correct Answer:
Condenser
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12. Resynthesis of ach occurs in the __________.
Cell body.
Synapse.
Axon.
Axon terminal.
Answer
Correct Answer:
Axon terminal.
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13. If cyanide entered cells, the result would be ______.
No ATP molecules could be produced from each glucose molecule
A net gain of only 2 ATP molecules produced from each glucose molecule
A net gain of only 4 ATP molecules produced from each glucose molecule
None of the listed responses is correct.
Answer
Correct Answer:
A net gain of only 4 ATP molecules produced from each glucose molecule
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14. Falling arterial blood pressure promotes ________.
Vasoconstriction.
Enhanced sodium ion loss in urine.
Vasodilation.
Enhanced water loss in urine.
Answer
Correct Answer:
Vasoconstriction.
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15. Anatomical features that change during illness are studied in ________ anatomy.
Gross
Surface
Microscopic
Pathological
Regional
Answer
Correct Answer:
Pathological
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16. If a person is severely dehydrated you would expect to see all of the following except ________.
Lower plasma levels
Higher hematocrit
Higher blood viscosity
Lower immunity
Answer
Correct Answer:
Lower immunity
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17. Hiccups could occur if there was irritation or damage to the ______.
Dorsal rami of spinal nerves associated with the C3-C5 region of the spinal cord
Afferent neurons of spinal nerves associated with the C3-C5 region of the spinal cord
Cutaneous branches of rami associated with the C3-C5 region of the spinal cord
Motor branches of ventral rami associated with the C3-C5 region of the spinal cord
Answer
Correct Answer:
Motor branches of ventral rami associated with the C3-C5 region of the spinal cord
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18. An acid with a ph of 6 has ________ hydrogen ions than pure water.
10-fold more
10-fold fewer
100-fold fewer
100-fold more
Answer
Correct Answer:
10-fold more
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19. Cardiovascular effects of the sympathetic division include all except ________.
Constriction of most blood vessels
Dilation of the vessels serving the skeletal muscles
Increase of heart rate and force
Dilation of the blood vessels serving the skin and digestive viscera
Answer
Correct Answer:
Dilation of the blood vessels serving the skin and digestive viscera
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20. Brain cells and red blood cells receive most of their energy directly from ________________.
Carbon Dioxide
Nutrient
Carbohydrates
Glucose
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21. Each time the heart contracts, the surge of blood can be felt as a ________.
Pulse
Blood pressure
Muscular twitch.
All of the above.
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22. Disuse of the joints ____________ which hastens stiffening.
Causes injuries
Causes arthritis
Causes cancer
Hampers blood flow
Answer
Correct Answer:
Hampers blood flow
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23. Delivering single shocks in succession to stimulate the frog heart _______.
Resulted in wave summation
Did not increase the height of the ventricular systole wave
Resulted in fused tetanus
Increased the height of the ventricular systole wave
Answer
Correct Answer:
Did not increase the height of the ventricular systole wave
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24. Coupled transporters that move solutes in the same direction are called _______.
Symporters
Isoporters
Antiporters
Uniporters
Answer
Correct Answer:
Symporters
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25. The typical concentration of sodium is _______.
Lower than potassium intracellularly
Higher than potassium intracellularly
Lower than potassium extracellularly
The same as potassium intracellularly
Answer
Correct Answer:
Lower than potassium intracellularly
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26. When doing a pushup, your shoulders __________ as your body is pushed upward.
Protract
Retract
Supinate
Hyperextend
Elevate.
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27. The membranes of neurons at rest are very permeable to _____ but only slightly permeable to _____.
K+; Na+
K+ (potassium)
Na+ (sodium)
Ca2+ (calcium)
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28. The membrane potential exists mainly due to ________ channels.
Multipolar
Chemically Gated
Leak
Continuous
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29. The membrane of a neuron is composed of ____ with ____ embedded in them.
Carbohydrates; purines
Fat molecules; proteins
Proteins; neurotransmitters
Benzene molecules; carbohydrates
Answer
Correct Answer:
Fat molecules; proteins
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30. The intercalated disk is not a site of __________.
Neuromuscular transmission
Intermediate
Slow
Anaerobic
Answer
Correct Answer:
Neuromuscular transmission
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31. The ___ is absent from most epidermis.
Stratum basale
Stratum spinosum
Stratum granulosum
Stratum lucidum
Stratum corneum
Answer
Correct Answer:
Stratum lucidum
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32. Muscle cells contain numerous __________ to serve their high demand for atp.
Lysosomes
Golgi vesicles.
Inclusions
Mitochondria
Ribosomes.
Answer
Correct Answer:
Mitochondria
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33. With a _________ fracture, the bone is splintered or crushed in several places.
Comminuted
Colles
Compression
Greenstick
Answer
Correct Answer:
Comminuted
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34. When the ph ________, a state of acidosis exists.
Falls below 7.18
Falls below 7.35
Falls below 7.7
Falls below 1.35
Answer
Correct Answer:
Falls below 7.35
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35. When the left ventricle contracts, the ________ valve closes and the ________ valve is pushed open.
Parietal pericardium
Papillary muscles
Atria; ventricles
Mitral; aortic
Answer
Correct Answer:
Mitral; aortic
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36. When the frequency of stimulation of a muscle is great enough, _______.
Wave summation results
Full relaxation of the muscle occurs and wave summation results
Full relaxation of the muscle occurs
Wave summation results and muscle twitches overlap
Muscle twitches overlap
Answer
Correct Answer:
Wave summation results and muscle twitches overlap
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37. When sodium channels are fully open, the membrane of the ventricular cardiocyte _________.
Sharply hyperpolarizes
Sharply repolarizes
Sharply depolarizes
None of these
Answer
Correct Answer:
Sharply depolarizes
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38. When one or more classes of cones are nonfunctional, the result is __________.
The appearance of
Creation of a blind spot
Color blindness
Image inversion
Answer
Correct Answer:
Color blindness
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39. When considering receptors for hormone molecules, we can say that, in general, ________.
Receptors for lipid-soluble hormones are inside the cell, whereas receptors for lipid-insoluble hormones are on or in the cell membrane
A strand of mRNA is transcribed in the nucleus. It leaves the nucleus for the cytoplasm. The message is translated into a new protein
They activate proteins that already exist within the cell
The nervous system enables more rapid communication and signaling than does the endocrine system.
Answer
Correct Answer:
Receptors for lipid-soluble hormones are inside the cell, whereas receptors for lipid-insoluble hormones are on or in the cell membrane
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40. When a bone breaks, a(n) ________ forms until later being replaced with bone.
Osteophyte
Fibrous callus
Pore
Cyst
Answer
Correct Answer:
Fibrous callus
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41. Water output is largely controlled by varying ___________.
Sweating
Urine volume
Metabolic water production
Cutaneous transpiration
Answer
Correct Answer:
Urine volume
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42. Visual processing in the thalamus does not contribute significantly to ________.
High-acuity vision
Depth perception
Night vision
Movement perception
Answer
Correct Answer:
Night vision
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43. Vigorous use of fast-twitch fibers results in fatigue because the process is ____.
Aerobic
Anaerobic
Anabolic
Abolic
Answer
Correct Answer:
Anaerobic
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44. Veins draining the head and upper extremities empty into the __________ vena cava.
Superior/ inferior
Top/ superior
Lateral/medial;
Bottom/ inferior
Answer
Correct Answer:
Superior/ inferior
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45. Two fundamental concepts about the ion channels of a "resting" neuron are that the channels _____.
Are always open, but the concentration gradients of ions frequently change
Are always closed, but ions move closer to the channels during excitation
Open and close depending on stimuli, and are specific as to which ion can traverse them
Open in response to stimuli, and then close simultaneously, in unison
Answer
Correct Answer:
Open and close depending on stimuli, and are specific as to which ion can traverse them
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46. Tracheal obstruction by a large piece of food typically involves obstruction of the ______.
Carina
Trachealis
Muscle
Larynx
Tracheal cartilage
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47. The trapezius muscle may be separated into all of the following groups, except __________.
Middle
Lateral
Superior
Inferior
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48. The tiny skeletal muscles associated with the ossicles of the middle ear function to __________.
Protect the hearing receptors from loud sounds
Increase the vibration of the ossicles of the ear
Connect the ossicles to each other
Increase the vibration of the tympanic membrane
Answer
Correct Answer:
Protect the hearing receptors from loud sounds
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49. The sympathetic nervous system is to the parasympathetic nervous system as ________ is to ________.
Information travels directly from the thalamus to the amygdala
Norepinephrine
Inhibition of digestion; acceleration of digestion
Contraction of pupils; dilation of pupils
Answer
Correct Answer:
Inhibition of digestion; acceleration of digestion
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50. The stage of labor during which the fetus emerges from the vagina is called the ________ stage.
Emergence
Placental
Expulsion
Fetal
Answer
Correct Answer:
Expulsion
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51. The reticular formation is a web of __________ scattered throughout the __________.
Gray matter; brainstem.
Nerves; white matter in the cerebrum.
White matter; cerebellum
None of these
Answer
Correct Answer:
Gray matter; brainstem.
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52. The regulation of potassium balance ________.
Is accomplished mainly by hepatic mechanisms
Involves aldosterone-induced secretion of potassium
Includes renal secretion, but never absorption
Is not linked to sodium balance
Answer
Correct Answer:
Involves aldosterone-induced secretion of potassium
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53. The presence of an incompetent tricuspid valve would have the direct effect of causing ______.
Pericardial cavity
Papillary muscles
Reduced efficiency in the delivery of blood to the lungs
Resting membrane potential
Answer
Correct Answer:
Reduced efficiency in the delivery of blood to the lungs
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54. The only muscle that possesses both voluntary and involuntary abilities is the ________.
Lung
Brain
Diaphragm
Heart.
Answer
Correct Answer:
Diaphragm
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55. The number of __________ typically increases in response to bacterial infections.
B and D; A
Neutrophils
Red bone marrow
O, Rh-negative
Answer
Correct Answer:
Neutrophils
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56. The muscles that move the pectoral girdle insert on the scapula and the __________.
Rhomboid minor
Rhomboid major
Serratus anterior
Pectoralis Minor
Answer
Correct Answer:
Pectoralis Minor
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57. The movement of fluids between cellular compartments ________.
Requires active transport
Is regulated by osmotic and hydrostatic forces
Requires ATP for the transport to take place
Involves filtration
Answer
Correct Answer:
Is regulated by osmotic and hydrostatic forces
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58. The most conspicuous effects of gh-igf1 are on __________.
Cartilage
Bone
Muscle
None of these
Answer
Correct Answer:
None of these
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59. The maintenance of the proper ph of the body fluids may be the result of ________.
Control of the acids produced in the stomach
The active secretion of OH- into the filtrate by the kidney tubule cells
The control of respiratory ventilation
The operation of the various buffer systems in the stomach
Answer
Correct Answer:
The control of respiratory ventilation
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60. The lumen of the uterus is lined by the glandular __________.
Mesometrium
Perimetrium
Myometrium
Endometrium
Answer
Correct Answer:
Endometrium
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61. The knee is reinforced laterally by the __________ ligament.
Mechanical support
It permits plantar flexion
Fibular collateral
None of these
Answer
Correct Answer:
Fibular collateral
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62. The ionic concentrations in the interior and exterior of body cells ________.
Reveal an excess of Na+ ions in the extracellular fluid
Trigger zone
Voltage
None of these
Answer
Correct Answer:
Reveal an excess of Na+ ions in the extracellular fluid
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63. The ion imbalance known as ________ initially leads to ________ in excitable cells.
Hypokalemia; depolarization
Hyperkalemia; hyperpolarization
Hyperkalemia; depolarization
Hypokalemia; repolarization
Answer
Correct Answer:
Hyperkalemia; depolarization
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64. The iliofemoral ligament is located in the _____ joint.
Hip
Longitudinal
Nuchal
Triquetral
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65. The hormonal change most responsible for the tissue changes seen in menopause is _________.
Decrease in estradiol
Female Reproductive System
Summary of Oogenesis
Breast Cancer
Answer
Correct Answer:
Decrease in estradiol
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66. The glomerulus differs from other capillaries in the body in that it ________.
Has a basement membrane
Is impermeable to most substances
Is drained by an efferent arteriole
Has a blood pressure much lower than other organ systems
Answer
Correct Answer:
Is drained by an efferent arteriole
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67. The frequency of cystitis in men is lower than in women because ______.
The external urethral sphincter in men is usually closed
The internal urethral sphincter in men is usually closed
The pH of a man's urine is usually more acidic than a woman's urine
The male urethra is longer than the female urethra
Answer
Correct Answer:
The male urethra is longer than the female urethra
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68. The first american to win a nobel prize was ______ for measuring the speed of light.
Albert Einstein
Albert Michelson
Grimaldi
Thomas Young.
Answer
Correct Answer:
Albert Einstein
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69. The ___________ is/are the longest of the male reproductive system ducts.
Straight tubules
Rete testes
Ductus epididymis
Ductus deferens
Ejaculatory duct
Answer
Correct Answer:
Ductus epididymis
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70. The __________ system serves both central and peripheral visual fields.
Fovea
Parallel processing system
Focal system
Ambient system.
Answer
Correct Answer:
Ambient system.
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71. The ________ convey(s) information about head position with respect to gravity.
Cochlea
Utricle
Ampulla
Saccule
Utricle and the saccule
Answer
Correct Answer:
Utricle and the saccule
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72. The ___ function(s) in visual attention, such as to look and follow the flight of a butterfly.
Inferior colliculi
Superior colliculi
Tegmentum
Red nucleus
Substantia nigra
Answer
Correct Answer:
Superior colliculi
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73. Support cells in the central nervous system are collectively called ________.
Myelin sheaths
Neuroglia
Oligodendrocytes
Microglia
Answer
Correct Answer:
Neuroglia
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74. Sperm are known to bear __________ that respond to chemical stimuli that help them locate the ova.
Pregnancy
Olfactory receptors
Both A and B
None of these
Answer
Correct Answer:
Olfactory receptors
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75. Someone studying anatomy using the systemic approach could study ______.
All the digestive organs
Landmarks on the surface of the body
All the muscles, nerves, and blood vessels of individual areas of the body
Changes in cells and tissues caused by disease
Answer
Correct Answer:
All the digestive organs
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76. Smooth muscle contracts when calcium binds to __________ and activates __________.
Troponin, myosin light chain kinase
Calmodulin, myosin light chain kinase
Troponin, tropomyosin
Calmodulin, actin
Answer
Correct Answer:
Calmodulin, myosin light chain kinase
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77. Sensory transduction of light in the vertebrate retina is accomplished by _____.
Ganglion cells
Amacrine cells
Rods and cones
Horizontal cells
Bipolar cells
Answer
Correct Answer:
Rods and cones
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78. Rubella infection during early pregnancy may cause damage to the embryo's ______.
Optic cups
Optic vesicles
Lens vesicles
All of the listed responses are correct.
Answer
Correct Answer:
All of the listed responses are correct.
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79. Reticulocytes are nucleated immature cells that develop into mature __________.
Platelets
Lymphocytes
Leukocytes
Erythrocytes
Answer
Correct Answer:
Erythrocytes
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80. Respiratory acidosis can be compensated for by _______.
The kidneys
Rebreathing
Hypoventilation and rebreathing
Hypoventilation
Hyperventilation
Answer
Correct Answer:
The kidneys
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81. One of the primary causes of eyestrain is ____.
A display screen that has no color controls a
A home PC installation
A tablet PC in an office
Multiple PCs installed in an office or training facility
Answer
Correct Answer:
A display screen that has no color controls a
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82. One of the organic substances not normally excreted by the kidney is __________.
Uric acid
Glucose
Urea
Creatinine.
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83. One of the major physiological factors that triggers thirst is ________.
Increased extracellular fluid water levels
The control of respiratory ventilation
A rise in plasma osmolality
Hydrostatic pressure of capillary blood
Answer
Correct Answer:
A rise in plasma osmolality
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84. One of the direct consequences of lactose intolerance is ______.
Being stressed or frightened
Neutralizing chyme entering the small intestine from the stomach
Increased osmotic pressure of the large intestine contents
None of these
Answer
Correct Answer:
Increased osmotic pressure of the large intestine contents
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85. One group of proteolytic enzymes secreted by natural killer (nk) cells is __________.
Selectins
Cytokines
Granzymes
Perforins
Interferons.
Answer
Correct Answer:
Granzymes
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86. One drawback to performing the butterfly method is the ________.
Cost
Mortality rate
Pain
Availability
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87. One can predict that a person suffering from diabetes mellitus would probably have ______.
Increased secretion of ANP (atrial natiuretic peptide)
Increased secretion of ADH (anti-diuretic hormone)
Decreased secretion of catecholamines
Decreased secretion of PTH (parathyroid hormone/parathormone)
Answer
Correct Answer:
Increased secretion of ADH (anti-diuretic hormone)
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88. Olfactory secretions that absorb water and form thick, pigmented mucous are produced by __________.
Olfactory glands
The olfactory cortex
Olfactory receptor population
Olfactory discrimination
Answer
Correct Answer:
Olfactory glands
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89. Olfactory receptors are located in the membrane that lines the ____ meatus.
External respiration.
inferior
medial
Superior
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90. Olfactory receptor cells differ from all other receptors for special senses in that they ________.
Are neurons.
Anterior chamber
Pituitary gland
Gustatory Cells
Answer
Correct Answer:
Are neurons.
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91. Older people may require lower drug doses than younger people because __________.
-they have lower rates renal clearance -
Primary germ layers are formed during
These are derivatives of ectoderm except
Mesenchyme gives rise to
Answer
Correct Answer:
-they have lower rates renal clearance -
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92. Nuclei of cranial nerves v (trigeminal), vi (abducens), and vii (facial) are found in the ________.
Medulla
Cerebrum
Pons
Midbrain
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93. Normal urine is usually pale yellow to amber in color, due to the presence of __________.
Hematuria
Urochrome
Pyuria
Bilirubinuria
Answer
Correct Answer:
Urochrome
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94. Norepinephrine is released from __________ nerves, causing heart rate to ______.
Sympathetic, increase.
Parasympathetic, increase
Parasympathetic, decrease.
Sympathetic, decrease.
Answer
Correct Answer:
Sympathetic, increase.
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95. Nonsteroid hormones cause _________________ in their target cells.
Activation of adenylate cyclase.
Hyperthyroidism
Uterine contractions
Hormones
Answer
Correct Answer:
Activation of adenylate cyclase.
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96. Neuropeptides that affect a neuron's response to other neurotransmitters are called _______.
Neuromodulators
Endocytosis.
Exocytosis.
Diffusion.
Answer
Correct Answer:
Neuromodulators
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97. Neurons and ________ have electrically excitable membranes that propagate action potentials.
Nerve cells
Neurons
Muscle cells
Endomysium
Answer
Correct Answer:
Muscle cells
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98. Neuroglia perform all of these functions except __________.
Release neurotransmitters
Channel-mediated diffusion
Anaxonic
Central
Answer
Correct Answer:
Release neurotransmitters
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99. Muscles of the shoulder can be divided into groups based on __________.
Distribution and functional relationships
This design allows the hand to maintain fine motor control and strength without the interference of bulky muscles.
The anterior flexor muscles
An insertion for the majority of lower leg muscles
Answer
Correct Answer:
Distribution and functional relationships
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100. Muscles are strung across joints and can therefore move them. the insertion of a muscle ________.
Is usually proximal to the origin on limb muscles
Is the stable or less movable attachment
Moves away from the origin during contraction
Moves toward the origin during contraction
Answer
Correct Answer:
Moves toward the origin during contraction
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101. Motor neurons whose cell bodies are within the spinal cord are called ________ neurons.
Upper motor.
Lower motor.
Preganglionic
None of these
Answer
Correct Answer:
Lower motor.
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102. Motion will occur in a muscle when the ______ supplied exceeds the _______.
Effort, load
Resistance, lever
Load, effort
Load, resistance
Answer
Correct Answer:
Effort, load
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103. Most treatments provided in the prehospital setting are intended to _________.
Confirm the patient's diagnosis
Correct the patient's underlying problem
Address the patient's symptoms
Reduce the need for transport to the hospital
Answer
Correct Answer:
Address the patient's symptoms
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104. Molecules tend to move spontaneously ________ their chemical gradient.
Through.
Up.
Down.
Over.
Around.
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105. Modifiers that affect heart rate are _______.
Chronotropic
Potassium
Sodium and calcium
Acetylcholine
Answer
Correct Answer:
Chronotropic
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106. Maintenance of normal fluid homeostasis requires all of these except __________.
Caloric balance.
Fall; rise
Phosphate
Alkalosis
Answer
Correct Answer:
Caloric balance.
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107. The small phagocytic cells that engulf debris and pathogens in the cns are the __________.
Astrocytes
Interneurons
Microglia
Dendrites
Answer
Correct Answer:
Microglia
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108. The small increase in ventricular pressure observed late in diastole is caused by ________.
Ventricular diastole
Atrial contraction
Ventricular systole
Crossbridge cycling
Answer
Correct Answer:
Atrial contraction
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109. The sinoatrial node has receptors for _______.
Epinephrine and norepinephrine
Acetylcholine
Glucocorticoids
Insulin and glucagon
Answer
Correct Answer:
Acetylcholine
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110. The sensory receptors, neurons and pathways make up the ________ division of the nervous system.
Voluntary.
Efferent.
Afferent.
Involuntary
Answer
Correct Answer:
Afferent.
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111. The sarcolemma of a resting muscle fiber is most permeable to __________.
Calcium -
Sodium -
Lithium
Potassium -
Magesium.
Answer
Correct Answer:
Potassium -
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112. The ruq is located _________________ to the rlq.
Superior
Respiratory
Anterior; posterior
Abdominal; thoracic
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113. The route of major parasympathetic outflow from the head is via the ________.
Vagus (X) nerves.
Hypothalamus
Skeletal muscle
Nicotinic agents
Answer
Correct Answer:
Vagus (X) nerves.
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114. The receptors responsible for auditory sensations are located in a structure called the __________.
Spiral organ
Lacrimal caruncle
Cornea
Tarsal gland
Answer
Correct Answer:
Spiral organ
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115. The proximal nail fold projects onto the nail body as the __________.
Cuticle
Freckle
Hormones
Second
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116. The process of sound waves traveling to the brain is known as ________ conduction.
Nociceptors
Thermo
Thermoreceptors
Sensorineural
Answer
Correct Answer:
Sensorineural
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117. The process of dissolving bone and returning its minerals to the bloodstream is known as _________.
Resorption.
Mineralization
Mineral deposition
Crystallizatio
Answer
Correct Answer:
Resorption.
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118. The process of bone recycling and renewal is known as __________.
Fracture repair
Metabolic turnover
Remodeling
The cartilage model
Answer
Correct Answer:
Remodeling
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119. The principal cations in our body fluids are ________ and ________.
Sodium; chloride
Calcium; magnesium
Sodium; potassium
Chloride; bicarbonate
Answer
Correct Answer:
Sodium; potassium
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120. The pons exchanges information with the cerebellum over the __________.
Middle cerebellar peduncle
Thalamus
Falx cerebelli
Cerebrum
Answer
Correct Answer:
Middle cerebellar peduncle
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121. The polysynaptic reflex that limits muscle tension is the __________ reflex.
Innate
Tendon
Crossed extensor
Monosynaptic
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122. The periosteal and meningeal layer of the duramater surrounding the brain enclose the _______.
Dura mater
Subarachnoid space
Dural sinuses
Dural venous
Answer
Correct Answer:
Dural venous
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123. The penile urethra is enclosed by the __________.
Corpus cavernosum
Corpus spongiosum -
Trabecular muscle
Prepuce -
Frenulum.
Answer
Correct Answer:
Corpus spongiosum -
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124. The output energy of all receptors is a type of __________ energy.
Chemical.
Mechanical.
Thermal.
Electrical.
Nuclear.
Answer
Correct Answer:
Electrical.
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125. Long-term memories that are with you for a lifetime are called ________ memories.
Tertiary
Secondary
Reflexive -
Consolidated
Multilobar.
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126. Transduction of lower frequency sound waves occurs at the __________ of the cochlea.
Apex
Proximal end
Base
Middle
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127. The serum used for emergency treatment of snakebites stimulates __________ immunity.
Type IV (delayed) hypersensitivity
Major histocompatibility complex (MHC) protein
Artificial passive
Helper T (TH) cells
Answer
Correct Answer:
Artificial passive
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128. The posterior surface of the tibial shaft is __________.
The insertion of the flexor digitorum longus
The joint where the muscle induces movement
The origin of the flexor digitorum longus
None of the above
Answer
Correct Answer:
The origin of the flexor digitorum longus
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129. The orthopedic surgery that uses an external fixator device is ________.
Leg lengthening
Scope, arthr/o-
Scintigraphy
Talipes equinovarus
Answer
Correct Answer:
Leg lengthening
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130. Hormones that regulate the secretory action of other endocrine glands are called __________.
Tropins
GHIH
Somatotropin
Somatostatins
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131. High levels of cortisol would normally provide negative feedback to the _______.
The posterior pituitary and the hypothalamus
The anterior pituitary and the hypothalamus
Posterior pituitary
Anterior pituitary
Hypothalamus
Answer
Correct Answer:
The anterior pituitary and the hypothalamus
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132. Hemorrhage triggers all of these responses except __________.
An increase in erythropoiesis
Release of the venous reserve
An increase in urine production
An increase in heart rate
Answer
Correct Answer:
An increase in urine production
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133. Heart muscle cells would tend to separate without ________.
Stroma
Intercalted discs
Flana
Myofilaments
Answer
Correct Answer:
Intercalted discs
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134. Guided by powerful signaling molecules, the human heart develops from __________.
Ectoderm
Mesoderm
Cardioderm
Endoderm
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135. An organism's ______ is its position in the food chain relative to the ecosystem's energy source.
Habitat
Niche
Climax level
Trophic level
Answer
Correct Answer:
Trophic level
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136. If the posterior portion of the neural tube failed to develop properly the ________.
The spinal cord may be affected
The cranial nerves would not form
The hindbrain would not be present
The telencephalon would cease development
Answer
Correct Answer:
The spinal cord may be affected
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137. Anatomically, the ________ is directly anterior to the glottic opening.
Thyroid gland
Vallecular space
Cricoid cartilage
Thyroid cartilage
Answer
Correct Answer:
Thyroid cartilage
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138. An increase in the nfp would result in a(n) _______________ in the gfr.
Decrease
Increase
Stimulation
Somatic
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139. An increase in blood co2 levels is followed by a(n) ____ in h+ ions and a(n) ____ in blood ph.
Decrease, decrease
Decrease, increase
Increase, increase
Increase, decrease
Increase, no change
Answer
Correct Answer:
Increase, decrease
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140. Hypertension is commonly considered to be a chronic resting blood pressure higher than __________.
180/90
130/60
120/75
140/90
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141. In ________, one neuron synapses on several postsynaptic neurons.
Divergence
Intercommunication
A plexus
A pool
Answer
Correct Answer:
Divergence
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142. If pain continues for a long time, __________.
NMDA receptors are suppressed
Pain tolerance will develop
Hyperalgesia develops
None of the above
Answer
Correct Answer:
Hyperalgesia develops
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143. Hyperventilation can result in _______.
Too much oxygen in the blood
Respiratory acidosis
Too much carbon dioxide in the blood
Too little carbon dioxide in the blood
Answer
Correct Answer:
Too little carbon dioxide in the blood
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144. Human vision is limited to wavelengths ranging from __________ nm.
4 to 70
40 to 700
400 to 700
400 to 7,000
4,000 to 7,000
Answer
Correct Answer:
400 to 700
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145. Exercise increases ____________ production which can be counteracted by _____________ in the body.
Lower, Higher
The demand and intensity (aerobic state)
Higher; lower
Free radical; antioxidants
Answer
Correct Answer:
Free radical; antioxidants
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146. Formed elements of the blood account for approximately ___% of the total blood volume.
25
35
45
55
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147. A nurse monitors the patient for _____ when rapid onset of malignant hypertension results.
Atherosclerosis
Encephalopathy
Pulmonary edema
Acute renal failure
Answer
Correct Answer:
Encephalopathy
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148. Under normal conditions, the forced expiratory volume is normally _______.
75-85% of the vital capacity
50-60% of the total lung capacity
75-85% of the total lung capacity
50-60% of the vital capacity
Answer
Correct Answer:
75-85% of the vital capacity
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149. For the frog heart, temperature and heart rate are _______.
Independent
Indirectly proportional
Controlled by homeostasis
Directly proportional
Answer
Correct Answer:
Directly proportional
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150. Congenital sensorineural deafness most commonly involves damage to ______.
The auricles
The cochlear hair cells
The auditory ossicles
All of the listed responses are correct
Answer
Correct Answer:
The cochlear hair cells
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151. An embryonic stem cell undergoes _____ to become a neuron.
Catabolism
Growth
Reproduction
Anabolism
Differentiation
Answer
Correct Answer:
Differentiation
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152. An adrenergic drug that worked in opposition to epinephrine would _______.
Be agonist and increase heart rate
Increase heart rate
Be antagonist and decrease heart rate
Decrease heart rate
Answer
Correct Answer:
Be antagonist and decrease heart rate
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153. An action potential is self-regenerating because __________.
The myelin sheath increases the speed of action potential conduction from the initial segment to the axon terminals
Depolarizing currents established by the influx of Na+ flow down the axon and trigger an action potential at the next segment
The inactivation gates of voltage-gated Na+ channels close in the node, or segment, that has just fired an action potential
None of these
Answer
Correct Answer:
Depolarizing currents established by the influx of Na+ flow down the axon and trigger an action potential at the next segment
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154. After fluid passes through the entire proximal tubule, the fluid will enter the ________.
Loop of Henle
Distal tubule
Connecting tubule
Reabsorbtion
Answer
Correct Answer:
Loop of Henle
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155. After entering the right atrium, the furthest a red blood cell can travel is the _________.
Right ventricle
Pulmonary trunk
Superior vena cava
None of the above
Answer
Correct Answer:
Superior vena cava
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156. Adjustment to close-range vision involves all of the following except __________.
Activity of the extrinsic eye muscles
Change in the curvature of the lens
Constriction of the pupil
Ciliary muscle activity
Light adaptation
Answer
Correct Answer:
Light adaptation
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157. A third-degree burn is also described as ________.
Superficial
Partial thickness
Full thickness
None of the above
Answer
Correct Answer:
Full thickness
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158. A result of homeostatic imbalance could be __________.
Breathing rate increasing as a result of exercise
Shivering as a result of being cold
Illness
Heart rate increasing as a result of exercise
Sweating as a result of being hot
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159. A reflex that leads to secretion of saliva is a(n) __________ reflex.
Visceral
Extensor
Polysynaptic
Reinforcement
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160. A primary spermatocyte matures into ________ spermatids having ________ chromosomes.
Millions of; 46
Four; 23
One; 46
Millions of; 23
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161. A pott's fracture could result in damage to all of the following except ____________.
Tibial condyle
Epiphyseal plate
Calcitonin
Calcitriol
Answer
Correct Answer:
Tibial condyle
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162. A patient who has been both vomiting and having diarrhea is losing ________ from his body.
Sodium
Water
Bicarbonate Ion
Hydrogen ion
All of these
Answer
Correct Answer:
All of these
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163. A patent ductus arteriosus permits ______.
The deoxygenated blood pumped out by the left ventricle to quickly flow into the pulmonary trunk
Blood to flow from the aorta into the pulmonary trunk
Blood to enter the pulmonary trunk from the aorta because the higher blood pressure in the pulmonary trunk forces blood to flow into the pulmonary trunk
All of the listed responses are correct
Answer
Correct Answer:
Blood to flow from the aorta into the pulmonary trunk
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164. A normal fev1% was seen with _______.
Acute asthma attack plus inhaler
Acute asthma attack
Emphysema
Emphysema, acute asthma attack and acute asthma attack plus inhaler
Answer
Correct Answer:
Acute asthma attack plus inhaler
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165. A mugger steals your wallet causing all of the following to happen except ________.
Increased metabolic rate
Increased rate and force of heartbeat
Increased glucose uptake to the liver from blood
Inability to read close-up print
Answer
Correct Answer:
Increased glucose uptake to the liver from blood
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166. A man who has had a successful orchiectomy may still be able to have children because ______.
The remaining testis is able, by itself, to produce a sufficient amount of testosterone
The seminiferous tubules of the remaining testis are still active
The epididymis posterior to the remaining testis is still functional
All of the listed responses are correct
Answer
Correct Answer:
All of the listed responses are correct
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167. ________ are responsible for the detection of mean arterial pressure.
Venous baroreceptors
Arterial baroreceptors
Aortic chemoreceptors
Thermoreceptors
Answer
Correct Answer:
Arterial baroreceptors
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168. Trusses and arches, which help form an internal scaffolding network, are found in __________.
Bone marrow
Children only
Adults only
Trabecular bone.
Answer
Correct Answer:
Trabecular bone.
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169. The large intestine is puckered into sacs called ______.
Ileocecal junction
Haustra
Teniae coli
None of these
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170. __________ feedback control reduces variations away from a desired physiological state.
Positive
Depressive
Neutral
Negative
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171. When fibrin levels increase, thrombin production is inhibited. this is an example of a __________.
Positive feedback loop
Vascular spasm
Negative feedback loop
Fibrinolysis
Answer
Correct Answer:
Negative feedback loop
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172. Gas, nutrient, and waste exchange occur between the __________ and the tissues of the body.
Capillaries
Superior Mesenteric
Veins
Tunica Media
Answer
Correct Answer:
Capillaries
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173. Contraction of mesangial cells results in a ________, which decreases glomerular filtration.
Decrease in surface area of capillaries available for filtration
Granular cell contraction
The sympathetic nervous system
Stimulates constriction of both the afferent and efferent arterioles
Answer
Correct Answer:
Decrease in surface area of capillaries available for filtration
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174. The ________ are the long peritubular capillaries that dip into the medulla.
Glomerulus
Reabsorption
Vasa recta
Secretion
Answer
Correct Answer:
Vasa recta
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175. Sensory adaptation is apparent when _____.
Individuals who live in cold climates have fewer cold receptors in their skin
Water above a certain temperature stimulates pain receptors rather than temperature receptors
Sitting in a hot room causes you to sweat
Your initial dive into a cold swimming pool gives your skin
A person is no longer aware of a heavy necklace that was put on earlier in the day
Answer
Correct Answer:
Individuals who live in cold climates have fewer cold receptors in their skin
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176. The gravitational force exerted on earth by the moon is greatest at the _________________.
Equator
Barycenter
Zenith
Poles
Nadir
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177. The difference in height between successive high and low tides is called the tidal _____.
Cycle
Fetch
Pull
Range
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178. The __________ is not found in the elbow.
Humeroulnar joint
Humeroradial joint
Proximal radioulnar joint
Distal radioulnar joint
Anular ligament.
Answer
Correct Answer:
Distal radioulnar joint
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179. The ________ cells lie between and around the glomerular capillaries.
Mesangial
Macula densa
Granular
Juxtaglomerular
Answer
Correct Answer:
Mesangial
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180. Simple diffusion is best described as substances __________.
Moving against a concentration gradient actively.
Moving against a concentration gradient passively.
Moving down a concentration gradient passively.
Moving down a concentration gradient actively.
Answer
Correct Answer:
Moving down a concentration gradient passively.
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181. Ocean currents that move toward the poles are _____.
Warm
Cold
Warm in the Northern Hemisphere and cold in the Southern Hemisphere
Cold in the Northern Hemisphere and warm in the Southern Hemisphere.
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182. Most of the productivity of the ocean occurs in (on) the _____________.
Uppermost layer of the ocean called the photic zone
Seepage from natural sources
Nitrogen and phosphorus
The temperature drops
Answer
Correct Answer:
Uppermost layer of the ocean called the photic zone
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183. Marine fishes usually do not survive in freshwater because of _________.
Insufficient oxygen
Insufficient food
The effects of osmotic pressure
Insufficient buoyancy
The effects of nutrient diffusion
Answer
Correct Answer:
The effects of osmotic pressure
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184. Hypersecretion of ________ results in increased urinary output and dehydration.
Atrial natriuretic peptide (ANP)
Diabetes mellitus
Parathyroid hormone
Both TSH and TRH
Answer
Correct Answer:
Atrial natriuretic peptide (ANP)
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185. What is the abducens nerve responsible for?
Contraction of one of the extraocular muscles
Control of facial muscles
Sensation to the face
Diplopia
Answer
Correct Answer:
Contraction of one of the extraocular muscles
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186. What are the two regions contained within the abdominopelvic cavity?
Abdominal and Thoracic
Abdominal and Pelvic
Thoracic and Abdominal
Cranial and Thoracic
Answer
Correct Answer:
Abdominal and Pelvic
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187. What is the basis of ABO blood group classification?
Morphology of red blood cells
Different proteins or antigens on the red cell membrane
Presence of antibodies in the blood
Presence or absence of A and B carbohydrates on the erythrocyte membrane surface
Answer
Correct Answer:
Presence or absence of A and B carbohydrates on the erythrocyte membrane surface
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188. What is the meaning of abduction?
Flexion of a limb
Rotation of a joint
Extension of a limb
Movement in the coronal plane that moves a limb laterally away from the body
Answer
Correct Answer:
Movement in the coronal plane that moves a limb laterally away from the body
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189. Where is the abdominal aorta located?
Inferior to the aortic hiatus and inferior to the common iliac arteries
Superior to the aortic hiatus and superior to the common iliac arteries
Superior to the aortic hiatus and inferior to the common iliac arteries
Inferior to the aortic hiatus and superior to the common iliac arteries
Answer
Correct Answer:
Inferior to the aortic hiatus and superior to the common iliac arteries
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Biotech Engineering MCQs | Topic-wise
