MICROANATOMY

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: -Mucosa-associated lymphoid tissue (MALT) is scattered along mucosal linings in the human body [1, 2, 3] and constitutes the most extensive component of human lymphoid tissue. These surfaces protect the body from an enormous quantity and variety of antigens.

Detailed explanation-3: -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-4: -The MALT include the tonsils, and all the tissues associated with the mucosal surfaces of the respiratory tract, of the intestinal tract, referred to as the gut-associated lymphoid tissue (GALT), and including the Peyer’s patches of the ileum, and of the genitourinary tract.

Detailed explanation-5: -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