When Your Immune System Gets Overly Sensitive

In all hypersensitivity reactions, the first exposure to antigen sensitizes the lymphocytes and the second exposure elicits a damaging reaction. During the second exposure to antigen, the allergen will crosslink several IgE molecules on the Mast cells. The cells then will degranulate and release powerful chemicals that induce hypersensitivity. ----------------------------------- Help us make health and medical education more interesting and available to every human being! Join this channel to get involved: One time contribution: Become our patron and monthly supporter: Do you think people will engage more and get more curious in education presented with beautiful animations? Then join the health and medical education revolution, the Free Medical Education​! Our aim is to make medical education universal, free, state of the art, and available to every human being t