Which one of the following is synthesized in the human body that dilates blood vessels and increases blood flow?
(a) Nitric oxide
(b) Nitrous oxide
(c) Nitrogen oxide
(d) Nitrogen pentoxide
Correct Answer: (a) Nitric oxide
Explanation:
Nitric oxide (NO) is synthesized in the human body and acts as a vasodilator, meaning it helps to dilate blood vessels and increase blood flow.
Possible Sources: Human physiology and biochemistry references.
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