ANATOMY

Detailed explanation-1: -antibody, also called immunoglobulin, a protective protein produced by the immune system in response to the presence of a foreign substance, called an antigen. Antibodies recognize and latch onto antigens in order to remove them from the body.

Detailed explanation-2: -When a virus infects the lungs, the body attempts to defend itself and fight off the infection. One defensive mechanism is the activation of a protein, called interferon lambda, which signals to surrounding lung tissue cells to switch on anti-viral defences.

Detailed explanation-3: -The acquired immune system, with help from the innate system, makes special proteins (called antibodies) to protect your body from a specific invader. These antibodies are developed by cells called B lymphocytes after the body has been exposed to the invader.

Detailed explanation-4: -Antibodies are Y-shaped proteins made in great abundance by our immune system. While antibodies come in a few shapes and sizes, the most familiar of these are the Y-shaped proteins known as IgG antibodies (immunoglobulin G).

Detailed explanation-5: -5 types of antibodies, each with a different function There are 5 types of heavy chain constant regions in antibodies (immunoglobulin) and according to these types, they are classified into IgG, IgM, IgA, IgD, and IgE. They are distributed and function differently in the body.