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Test 3
Test 3
10
Anatomy
Undergraduate 2
04/21/2010

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Term
What is the functional classification for neurons that carry information from the central nervous system to peripheral effector organs?
Definition
motor (efferent)
Term
What is the functional classification for neurons that carry information from peripheral receptors to the central nervous system?
Definition
sensory (afferent)
Term
What type of glial cell is responsible for acting as phagocytic cells in the central nervous system?
Definition
microglia
Term
What is the smallest stimulus that is capable of initiating an action potential called?
Definition
threshold stimulus
Term
Hyperpolarization is the result of the excessive exit of which ion from the cell?
Definition
potassium
Term
In the PhysioEx exercise, what was the effect of lidocaine on the nerve?
Definition
inhibition
Term
What fluid fills the scala vestibuli?
Definition
perilymph
Term
 
What are clusters of neuronal cell bodies in the central nervous system called?
Definition
nuclei
Term
What type of glial cell is responsible for myelinating axons in the central nervous system?
Definition
oligodendrocyte
Term
What do we call the period during which initiation of an action potential requires a higher than normal threshold stimulus?
Definition
relative refractory period
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