IMMUNOLOGY

Detailed explanation-1: -The mucosa-associated lymphoid tissue (MALT), also called mucosa-associated lymphatic tissue, is a diffuse system of small concentrations of lymphoid tissue found in various submucosal membrane sites of the body, such as the gastrointestinal tract, nasopharynx, thyroid, breast, lung, salivary glands, eye, and skin.

Detailed explanation-2: -MALTs are located directly beneath the mucosal epithelia cell layer, only separated from the outside world by the follicle-associated epithelium. They serve as immune inductive sites and harbor well-organized lymphoid structures.

Detailed explanation-3: -Primary lymphoid organs: These organs include the bone marrow and the thymus. Secondary lymphoid organs: These organs include the lymph nodes, the spleen, the tonsils and certain tissue in various mucous membrane layers in the body (for instance in the bowel). 30-Jul-2020