Gaps or interruptions in the myelin sheath are called ________.

A. gap junctions
B. neurofilaments
C. nodes of Ranvier
D. tight junctions
E. internodes


Answer: C

Anatomy & Physiology

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A. can be taken to experience altered states of consciousness. B. can be taken to relieve altered states of consciousness. C. may stimulate neuronal activity in the "reward" areas of the brain. D. All of the choices are correct.

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The selective movement of substances from inside the tubule (the tubular lumen) into the blood is called tubular __________

Fill in the blank(s) with correct word

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We describe the regeneration of the action potential down the membrane of the axon of the neuron as _______.

A) voltage B) light C) heat D) chemicals

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