Gut-associated lymphoid tissue | |
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Details | |
System | Lymphatic system |
Identifiers | |
Acronym(s) | GALT |
FMA | 62820 |
Anatomical terminology |
Gut-associated lymphoid tissue (GALT)[1] is a component of the mucosa-associated lymphoid tissue (MALT) which works in the immune system to protect the body from invasion in the gut.
Owing to its physiological function in food absorption, the mucosal surface is thin and acts as a permeable barrier to the interior of the body. Equally, its fragility and permeability creates vulnerability to infection and, in fact, the vast majority of the infectious agents invading the human body use this route.[2] The functional importance of GALT in body's defense relies on its large population of plasma cells, which are antibody producers, whose number exceeds the number of plasma cells in spleen, lymph nodes and bone marrow combined.[3] GALT makes up about 70% of the immune system by weight; compromised GALT may significantly affect the strength of the immune system as a whole.[4]
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