Question
Chemistry Question on Chemistry in Everyday Life
...................is a potent vasodilator
A
Histamine
B
Serotonin
C
Codeine
D
Cimetidine
Answer
Histamine
Explanation
Solution
Both assertion and reason are correct but the reason is not the correct explanation for the reason.
Histamine is a potent vasodilator . It can dilate the blood vessels and helps in the inflammatory response and inflammation. It will therefore increase the blood flow.
Histamine is also responsible for nasal congestion but this is not the correct explanation for its vasodilation property.