Library · Anatomy
Lymph Node
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A lymph node is a small structure in the immune system. Picture a station positioned along the lymphatic vessels: lymph, the fluid that moves through this network, passes through it.
Inside the node, substances traveling in the lymph are filtered. Lymph nodes also contain lymphocytes, white blood cells that help defend the body against infections and disease.
In brief
A lymph node is a small, bean-shaped structure that is part of the immune system.
Lymph nodes filter substances carried in lymph and contain lymphocytes, white blood cells that help fight infections and disease. As lymph passes through the node, the substances it carries encounter the lymphocytes contained within that structure. This combines filtration with immune defense within a single site.
Sources (1)
- National Cancer InstituteDefinition of lymph node
This page explains the topic in general terms; it does not tell anyone what treatment to follow.
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