Lymph nodes: definition and function (preview) - Human Anatomy | Kenhub
Anatomy of a Lymph Node
Lymph node histology (preview) - Human Anatomy | Kenhub
Lymphatics of the posterior abdominal wall (preview) - Human Anatomy | Kenhub
A lymph node or lymph gland is an ovoid or kidney-shaped organ of the lymphatic system, and of the adaptive immune system, that is widely present throughout the body. They are linked by the lymphatic vessels as 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.