Q: The primary action of nitric oxide in the gastrointestinal tract is:
(a) Vasodilation
(b) Vasoconstriction
(c) GI smooth muscle relaxation.
(d) GI slow smooth muscle contraction.
A:c. GI smooth....
(a) Vasodilation
(b) Vasoconstriction
(c) GI smooth muscle relaxation.
(d) GI slow smooth muscle contraction.
A:c. GI smooth....
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