Preganglionic fibers of the autonomic efferent pathway are _________ and secrete __________.
A) myelinated;norepinephrine (NE)
B) myelinated;acetylcholine (ACh)
C) myelinated;acetylcholine (ACh) and norepinephrine(NE)
D) unmyelinated;acetylcholine (ACh)
E) unmyelinated;norepinephrine(NE)
Correct Answer:
Verified
Q19: The autonomic nervous system is composed of
Q20: Acetylcholine (ACh)always has an excitatory effect.
Q21: The motor pathway of the autonomic nervous
Q22: Which of the following is not a
Q23: Sympathetic fibers arise only from the _
Q25: Most fibers of the parasympathetic nervous system
Q26: Which of the following is true regarding
Q27: The sympathetic chain of ganglia is found
Q28: Preganglionic fibers run from the _ to
Q29: Which of the following structures releases neurotransmitter
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