Study Biology

Question 1

(Multiple Choice)

Ejaculation is controlled by a reflex arc that involves several nerves and neurotransmitters.The final neurotransmitter in this arc that directly stimulates the contraction of the muscularis of the male reproductive tract is:


A)Acetylcholine.
B)Nitric oxide.
C)Oxytocin.
D)Norepinephrine.
E)Somatostatin.

Answer

D

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