Impulse conduction is faster in neurons that are ________
A) myelinated
B) unmyelinated
C) sensory
D) motor
E) cerebral
A
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How many additional pathways supply ATP as needed during muscle contraction?
a. 1 b. 2 c. 3 d. 4 e. 5
Which of the following occurred in the presence of tetrodotoxin?
A) The number of action potentials increased. B) The number of action potentials decreased. C) The size of the action potential decreased. D) The size of the action potential increased.
The MOST common cause of Addisonian crisis is:
A) overwhelming stress. B) a severe acute infectious process. C) abrupt termination of corticosteroid use. D) acute failure of one or both of the adrenal glands.
Which of the following is NOT true of digestive enzymes?
A. One enzyme can catalyze several reactions. B. They use water as a reactant. C. They are hydrolytic enzymes. D. They are pH dependent.