What is Lymph node in Biology?

Learn Lymph node definition in biology with explanation to study “What is Lymph node”. Study lymph node explanation with biology terms to review biology course for online degree programs.

Lymph node Definition

  • Along a lymph vessel are small, lymph-filtering organs called lymph nodes, which play an important role in the body's defense.

    Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson



Lymph node Explanation

A lymph node or lymph gland is an ovoid or kidney-shaped organ of the lymphatic system and of the adaptive immune system. These ovoid organs are present throughout the body. They are linked by the lymphatic vessels and they form a part of the circulatory system. Lymph nodes are major sites of B and T lymphocytes, and other white blood cells. Lymph nodes are important for the proper functioning of the immune system, acting as filters for foreign particles and cancer cells. Lymph nodes do not have a detoxification function, which is primarily dealt with by the liver and kidneys.

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