PATHOLOGY

Detailed explanation-1: -The main job of the innate immune system is to fight harmful substances and germs that enter the body, for instance through the skin or digestive system. The adaptive (specific) immune system makes antibodies and uses them to specifically fight certain germs that the body has previously come into contact with.

Detailed explanation-2: -The major function of the immune system is to protect the host from environmental agents such as microbes or chemicals, thereby preserving the integrity of the body.

Detailed explanation-3: -white blood cells. antibodies. complement system. lymphatic system. spleen. bone marrow. thymus.