Nervous System MCQ
1. Pathological conditions that cause albuminuria include ________.
Answer
Correct Answer:
Eating too much protein.
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2. Parkinsonism is characterized by the loss of _____
Answer
Correct Answer:
Dopaminergic innervation
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3. The complete termination of metabolic processes is called _______________ death.
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4. Bidirectional, instantaneous synaptic transmission is typical of __________.
Answer
Correct Answer:
Electrical synapses
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5. The nucleus basalis is a key part of the brains system for ____.
Answer
Correct Answer:
Attention
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6. A/an ______ is administered to temporarily relieve anxiety and to reduce tension.
Answer
Correct Answer:
Anxiolytic drug
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7. Normally, sodium and potassium leakage channels differ because ___________________.
Answer
Correct Answer:
Sodium ions diffuse through leakage channels into the cell, but potassium ions diffuse through leakage channels out of the cell
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8. The _______________ division of the ans functions mainly under ordinary, restful conditions.
Answer
Correct Answer:
Parasympathetic
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9. A nerve is a group of ________ bundled together
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10. The ________ convey(s) information about head position with respect to gravity.
Answer
Correct Answer:
Utricle and saccule
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11. The cochlea, semicircular canals, and vestibular sacs make up the _____ ear.
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12. Penfield mapped locations of body parts on area s1 by _____.
Answer
Correct Answer:
Stimulating S1 areas in humans, and asking where they felt body sensations
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13. In a(n) ________ synapse, current flows directly between cells.
Answer
Correct Answer:
Electrical
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14. In ________, one neuron synapses on several postsynaptic neurons.
Answer
Correct Answer:
Divergence
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15. The tract that carries sensations from muscle spindles to the cns is the __________.
Answer
Correct Answer:
Spinocerebellar
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16. During the _______________, the neuron cannot generate another action potential.
Answer
Correct Answer:
Na+, absolute refractory
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17. A remarkable fact about cells is that _____.
Answer
Correct Answer:
Cells are very different but have similar properties
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18. Bones are composed mostly of __________.
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19. The motor neurons of the sympathetic nervous system project from the _______ to the _______.
Answer
Correct Answer:
Gray matter of the thoracic and lumbar spinal cord; sympathetic ganglia
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20. The _____ is the main means for transmitting messages between the brain and the body.
Answer
Correct Answer:
Spinal cord
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21. Somatic is to autonomic as ______ is to ______.
Answer
Correct Answer:
Voluntary ;involuntary
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22. Autonomic nervous system fibers are involved in all of the following except __________.
Answer
Correct Answer:
Maintaining the tonicity of the muscles of the neck.
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23. In a neuron, during the depolarization phase that may trigger an action potential _____.
Answer
Correct Answer:
Some voltage-gated sodium channels are open
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24. If the membrane potential of a neuron decreases, the membrane potential _____.
Answer
Correct Answer:
Becomes less negative.
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25. Each peripheral nerve provides ________ innervation to peripheral structures.
Answer
Correct Answer:
Motor and sensory
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26. The peripheral nervous system consists of _____ and motor neurons.
Answer
Correct Answer:
All of these
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27. The heart muscle is a ________ effector.
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28. The concentrations of ions are very different inside and outside a nerve cell due to _____.
Answer
Correct Answer:
Sodium-potassium pumps
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29. When a ligand ____________, an ipsp will be produced.
Answer
Correct Answer:
Opens a potassium channel
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30. A neuron sends a signal toward another neuron along its _____.
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31. ________ open or close in response to binding specific molecules.
Answer
Correct Answer:
Chemically gated channels
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32. ________ neurons form the afferent division of the pns.
Answer
Correct Answer:
Sensory neurons
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33. All somatic motor neurons produce __________.
Answer
Correct Answer:
Only acetylcholine
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34. Function in the endocrine system much like ____ in the nervous system.
Answer
Correct Answer:
Hormones;Neurotransmitters
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35. In neurons, efferent is to ______ as afferent is to ______.
Answer
Correct Answer:
Motor; sensory
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36. Match the term to its correct description: gaba __________.
Answer
Correct Answer:
Generally inhibitory; found throughout CNS
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37. In the surgery of skull base, the ____ procedure is what is done to the lesion.
Answer
Correct Answer:
Definitive
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38. __________neurons are rare neurons, but are located in the retina and in the olfactory mucosa.
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39. For example, a single touch sensory ____________ can cover a large area of skin.. .
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40. Cells that gather information and control body functions are ________.
Answer
Correct Answer:
Nerve cell
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41. There are _____ pairs of cranial nerves and _____ pairs of spinal nerves.
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42. The _______ branch of the nervous system is under involuntary, unconscious control.
Answer
Correct Answer:
Autonomic Nervous System
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43. The efferent division of the peripheral nervous system innervates ________ cells.
Answer
Correct Answer:
All of the above
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44. The excitable cells of the nervous system are called ____________ .
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45. The ________ method can be used to identify the neural inputs to a brain region.
Answer
Correct Answer:
Retrograde labeling
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