lymph node
Sign in to saveorgan of the lymphatic system
AI overview
Lymph nodes are small organs that are part of your body's lymphatic system, which works alongside your immune system to filter fluid and fight infections. They contain immune cells that help identify and destroy harmful invaders like bacteria and viruses, which is why they often swell when you're sick as your body battles an infection.
AI-generated from the Wikipedia summary — may contain errors.
Article
A lymph node, or lymph gland, is a kidney-shaped organ of the lymphatic system and the adaptive immune system. A large number of lymph nodes are linked throughout the body by the lymphatic vessels. They are major sites of lymphocytes that include B and T cells. Lymph nodes are important for the proper functioning of the immune system, acting as filters for foreign particles including cancer cells, but have no detoxification function.
In the lymphatic system, a lymph node is a secondary lymphoid organ. A lymph node is enclosed in a fibrous capsule and is made up of an outer cortex and an inner medulla.