Which Neurotransmitter Is Released from Parasympathetic Nerves to Dilate the Penile

question 145

Multiple Choice

Which neurotransmitter is released from parasympathetic nerves to dilate the penile arterioles to increase blood flow to the erectile tissue?

• A) norepinephrine
• B) acetylcholine
• C) nitric oxide
• D) histamine
• E) serotonin

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