In the experiment on stimulation of the isolated sciatic nerve, the compound action potential increases in amplitude with an increase in stimulation voltage. This is due to ________
A) recruitment of large diameter axons followed by small diameter axons in the nerve
B) increase in the size of action potentials produced be each individual axon in the nerve
C) recruitment of small diameter axons followed by large diameter axons in the nerve
D) simultaneous recruitment of small and large diameter axons in the nerve
Answer: A
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Which of the following sets of cranial nerves all carry preganglionic parasympathetic (general visceral efferent) fibers?
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Increased cytosolic ________ concentrations are necessary for muscular contractions to occur properly.
Fill in the blank(s) with the appropriate word(s).
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Chemical protein digestion begins in the
A) mouth. B) esophagus. C) stomach. D) duodenum. E) cecum.