the tissues of the body where lymphocytes are produced, where they mature and where they are activated. The bone marrow, thymus, lymph nodes, spleen and adenoids, tonsils, Peyer's patches and mesenteric, lymph nodes are all lymphoid tissues.
Tissue involved in the formation of lymph fluid, lymphocytes and antibodies.
tissue making up the lymphatic system
Tissue that is particularly rich in T-cells, B-cells and plasma cells, as well as assistant cells such as macrophages and reticular cells. Lymphoid tissue includes the lymph nodes, spleen, thymus, Peyer's patches, pharyngeal tonsils and adenoids.
Specialized tissues that are components of the lymphatic system. They provide fixed locations within the body where a variety of LYMPHOCYTES can form, mature and multiply. The lymphoid tissues are connected by a network of LYMPHATIC VESSELS.
the organs of the lymph system throughout the body, including the BONE MARROW, THYMUS, LYMPH NODES, SPLEEN, tonsils, PEYER'S PATCHES and LYMPHOCYTE aggregates on mucosal surfaces.
tonsils, adenoids, lymph nodes, spleen and other tissues that act as the body's filtering system, trapping invading microorganisms and presenting them to squadrons of immune cells that congregate there. macrophage: a large immune system cell in the tissues that devours invading pathogens and other intruders. Macrophages stimulate other immune cells by presenting them with small pieces of the invaders. Macrophages also can harbor large quantities of HIV without being killed, acting as reservoirs of the virus.
Tissue composed of lymphocytes supported by a meshwork of connective tissue.