Tissue, 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, spleen, tonsils, adenoids and the thymus (an organ in the chest that is particularly large during infancy). A tissue in medicine is not like a piece of tissue paper. It is a broad term that is applied to any group of cells that perform specific functions. A tissue in medicine need not form a layer. Thus, the bone marrow is also a tissue.

Medical dictionary. 2011.

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  • Lymphoid system — Lymphatic drainage redirects here. For the massage technique, see Manual lymphatic drainage. Lymphoid System An image displaying the lymphoid system. Latin …   Wikipedia

  • tissue — tissual, adj. tissuey, adj. /tish ooh/ or, esp. Brit., /tis yooh/, n., v., tissued, tissuing. n. 1. Biol. an aggregate of similar cells and cell products forming a definite kind of structural material with a specific function, in a multicellular… …   Universalium

  • lymphoid — /lim foyd/, adj. 1. of, pertaining to, or resembling lymph. 2. of or pertaining to the tissue (lymphoid tissue) that occurs esp. in the lymph glands, thymus, tonsils, and spleen and produces lymphocytes. [1865 70; LYMPH + OID] * * * …   Universalium

  • lymphoid — /ˈlɪmfɔɪd/ (say limfoyd) adjective 1. resembling, of the nature of, or relating to, lymph. 2. denoting or relating to a tissue (lymphoid tissue) forming the greater part of the lymph glands. 3. relating to a lymphocyte. {lymph + oid} …   Australian English dictionary

  • Lymphoid — Lymph oid, a. [Lymph + oid.] (Anat.) Resembling lymph; also, resembling a lymphatic gland; adenoid; as, lymphoid tissue. [1913 Webster] …   The Collaborative International Dictionary of English

  • lymphoid — [lim′foid΄] adj. [ LYMPH + OID] of or like lymph or the tissue of the lymph nodes …   English World dictionary

  • lymphoid tissue — Tissue that is particularly rich in lymphocytes (and accessory cells such as macrophages and reticular cells), particularly the lymph nodes, spleen, thymus, Peyer s patches, pharyngeal tonsils, adenoids, and (in birds) the Bursa of Fabricius …   Dictionary of molecular biology

  • lymphoid tissue — Cells, tissues, and organs composing the immune system, including the bone marrow, thymus, spleen, and lymph nodes. The most highly organized components are the thymus and lymph nodes, and the least organized are the cells that wander in the… …   Universalium

  • Tissue — A tissue in medicine is not like a piece of tissue paper. It is a broad term that is applied to any group of cells that perform specific functions. A tissue in medicine need not form a layer. Thus, The bone marrow is a tissue; Connective tissue… …   Medical dictionary

  • Lymphoid tissue — 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 …   Medical dictionary

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