The neurotransmitter acetylcholine induces vasodilation in intact blood vessels due to release of

A. nitric oxide from the endothelium.
B. nitric oxide from the smooth muscle layer.
C. nitric oxide from the lymphatic system.
D. carbon monoxide from the endothelium.
E. norepinephrine from the endothelium.


A. nitric oxide from the endothelium.

Biology & Microbiology

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Answer the following statement true (T) or false (F)

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