Mucosa-associated lymphoid tissue (MALT)

Definition

Mucosa-associated lymphoid tissue (MALT) is a component of the immune system that provides the first line of defense against antigens entering through mucosal surfaces. It consists of collections of lymphocytes and other immune cells embedded in the mucous membranes lining the gastrointestinal, respiratory, and genitourinary tracts.

Related terms

Lymphocytes:

White blood cells that play an integral role in the immune system by recognizing and responding to foreign pathogens.

Antigen: Any substance that triggers an immune response when introduced into the body, often seen as a threat by the immune system.

Immunoglobulins:

Proteins produced by plasma cells derived from B lymphocytes that act as antibodies to bind and neutralize pathogens