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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Psychoactive drugs
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.
Anatomy & Physiology
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
Anatomy & Physiology
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
Anatomy & Physiology
The skin is ____ to the heart
a. deep b. superior c. superficial d. distal
Anatomy & Physiology