Ejaculation Is Controlled by a Reflex Arc That Involves Several

question 14

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.