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Preganglionic Fibers of the Autonomic Efferent Pathway Are _________ and Secrete

Question 25

Multiple Choice

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)

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