How do antigens enter the body?
1 Answer
Sep 22, 2016
Antigens are the recognition proteins on the cells. Only when foreign cells enter the body those antigens enter the body.
Explanation:
By definition antigens are cell surface proteins. These are recognition proteins. The own body cells are recognized due to antigens present. By chance if any foreign cells or organisms enter the body against those antigens immune cells secrete antibodies. These are various sources to enter foreign cells in body as nose, food, wounds, infections etc.
