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