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What do we call neuronal processes that transmit membrane potentials away from the neuronal cell body?
axons
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What is the functional classification for neurons that carry information from peripheral receptors to the central nervous system?
sensory
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What type of glial cell is responsible for supporting neurons and maintaining the blood/brain barrier?
astrocytes
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Which labeled portion of the diagram corresponds to the hyperpolarization of the axon?
D
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What do we call the period during which initiation of an action potential requires a higher than normal threshold stimulus?
relative refractory period
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Hyperpolarization is the result of the excessive exit of which ion from the cell?
potassium
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In the PhysioEx exercise, what was the effect of ether on the nerve?
inhibition
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Is the indicated cranial nerve sensory only, motor only, or both sensory and motor?
sensory only
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Is the indicated cranial nerve sensory only, motor only, or both sensory and motor?
motor only
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anterior horn of lateral ventricle
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periosteal layer of dura mater
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What phenomenon does the indicated structure sense?
sound
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What fluid fills the scala tympani?
perilymph
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What are clusters of neuronal cell bodies in the central nervous system called?
nuclei
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What type of glial cell is responsible for producing and circulating cerebrospinal fluid?
ependymal cells
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What do we call the period during which an action potential cannot be initiated, regardless of the strength of the stimulus?
absolute refractory period
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Depolarization is the result of the rapid entry of which ion into the cell?
sodium
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In the PhysioEx exercise, what was the effect of curare on the nerve?
no effect
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