lymph node

lymph node
Small oval bodies of the lymphatic system, distributed along the lymphatic vessels, that are clustered in the armpits, groin, neck, chest and abdomen. They act as filters, with an internal honeycomb of connective tissue filled with lymphocytes and macrophages that collect and destroy bacteria, viruses and foreign matter from lymph. When the body is fighting an infection, these lymphocytes multiply rapidly and produce a characteristic swelling of the lymph nodes.

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  • lymph node — UK / US or lymph gland UK / US noun [countable] Word forms lymph node : singular lymph node plural lymph nodes Word forms lymph gland : singular lymph gland plural lymph glands medical one of several small organs in your body that help to remove… …   English dictionary

  • lymph node — (= lymph gland) Small organ made up of a loose meshwork of reticular tissue in which are enmeshed large numbers of lymphocytes, macrophages, and accessory cells. Recirculating lymphocytes leave the blood through the specialized high endothelial… …   Dictionary of molecular biology

  • Lymph node — (Anat.) A lymphatic gland. [1913 Webster] …   The Collaborative International Dictionary of English

  • lymph node — n also lymph gland a small rounded ↑swelling in your body through which lymph passes before entering your blood system …   Dictionary of contemporary English

  • lymph node — lymph′ node n. anat. any of the glandlike masses of tissue in the lymph vessels containing cells that become lymphocytes Also called lymph′ gland . Etymology: 1890–95 …   From formal English to slang

  • lymph node — (also lymph gland) ► NOUN ▪ each of a number of small swellings in the lymphatic system where lymph is filtered and lymphocytes are formed …   English terms dictionary

  • lymph node — lymph ,node or lymph ,gland noun count one of several small organs in your body that help remove harmful bacteria from your blood …   Usage of the words and phrases in modern English

  • lymph node — n. any of the many small, compact structures located throughout the lymphatic system, that collect and destroy bacteria that have entered the body, produce lymphocytes, etc.: sometimes called lymph gland …   English World dictionary

  • lymph node — One of numerous round, oval, or bean shaped bodies located along the course of lymphatic vessels, varying greatly in size (1–25 mm in diameter) and usually presenting a depressed area, the hilum, on one side through which blood vessel s enter and …   Medical dictionary

  • Lymph node — A Lymph node (] MedullaThere are two named structures in the medulla: * The medullary cords are cords of lymphatic tissue, and include plasma cells and B cells * The medullary sinuses (or sinusoids ) are vessel like spaces separating the… …   Wikipedia

  • lymph node — any of the glandlike masses of tissue in the lymphatic vessels containing cells that become lymphocytes. Also called lymph gland. [1890 95] * * * Small, rounded mass of lymphoid tissue contained in connective tissue. They occur all along… …   Universalium

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