lymphoid
51gut-associated lymphoid tissue — (= GALT) Peripheral lymphoid organ consisting of lymphoid tissue associated with the gut (Peyer s patches, tonsils, mesenteric lymph nodes, and the appendix) …
52peripheral lymphoid tissue — Secondary lymphoid tissue, not necessarily located peripherally. See lymphoid tissue …
53Tissue, lymphoid — A part of the body s immune system that helps protect it from bacteria and other foreign entities. Lymphoid tissue is rich in lymphocytes (and accessory cells such as macrophages and reticular cells). The lymphoid tissue includes the lymph nodes …
54primary lymphoid nodule — a lymphoid nodule that has not been exposed to antigen and lacks a germinal center; upon activation of B lymphocytes it develops into a secondary lymphoid nodule …
55secondary lymphoid nodule — a lymphoid nodule that has been exposed to antigen and contains a germinal center with actively proliferating B lymphocytes, developing from a primary lymphoid nodule …
56bronchial-associated lymphoid tissue — bronchus associated lymphoid tissue (BALT) lymphoid tissue associated with the lungs …
57gut-associated lymphoid tissue — (GALT) The defensive lymphoid tissue present in the intestines. See Peyer s patches …
58mucosal-associated lymphoid tissue — (MALT) The defensive immune lymphoid tissue located in the intestinal mucosa …
59skin-associated lymphoid tissue — (SALT) The lymphoid tissue in the skin that forms a first line defense as a part of nonspecific immunity …
60central lymphoid tissue — See lymphoid tissue …