Which one of the following is synthesised in human body that dilates blood vessels and increases blood flow?
Which one of the following is synthesised in human body that dilates blood vessels and increases blood flow?
Nitric oxide
Nitrous oxide
Nitrogen dioxide
Nitrogen pentoxide
Solution
Nitric oxide (NO) is synthesised by the endothelial cells lining blood vessels; it acts as a vasodilator, relaxing smooth muscle and increasing blood flow. (1998 Nobel Prize in Medicine for this discovery.)