Which one of the following is synthesised in human body that dilates blood vessels and increases blood flow

Explanation

Answer: A The gasotransmitters are a family of gaseous signaling molecules which are produced endogenously and act at specific receptors to play imperative roles in physiologic and pathophysiologic processes. As a well-known gasotransmitter along with hydrogen sulfide and carbon monoxide, nitric oxide (NO) has earned repute as a potent vasodilator also known as endothelium-derived vasorelaxant factor (EDRF). Source: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6164974/ https://www.civilsdaily.com/news/india-is-the-worlds-second-largest-emitter-of-nitrous-oxide/