Q. Histamine, serotonin and heparin are secreted by

A) Lymphocytes
B) Monocytes
C) Neutrophils
D) Basophils
Explanation

Basophils (one of the types of granulocytes) secrete histamine, serotonin, heparin, etc., and are involved in inflammatory reactions. They are probably like mast cells of connective tissue.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.