Lymph gland

Lymph Gland

A Lymph gland, also known as a lymph node, is a small, bean-shaped structure that is part of the body's immune system. Lymph nodes filter substances that travel through the lymphatic fluid, and they contain lymphocytes that help the body fight off illness and diseases.

Structure

Lymph nodes are widely distributed throughout the body and are linked by lymphatic vessels. They are major sites of B cells, T cells, and other white blood cells. Lymph nodes are important for the proper functioning of the immune system, acting as filters for foreign particles including cancer cells.

Function

Lymph nodes play a key role in the immune response. They produce and store cells that fight infection and disease. The lymph nodes also filter the lymph fluid and remove foreign material such as bacteria and cancer cells. When the body is fighting an infection, lymph nodes can become swollen and tender.

Clinical significance

In the human body, the lymphatic system is the first line of defense against disease. This system produces white blood cells known as lymphocytes that protect the body against invaders. When lymph nodes become swollen or painful, it's often a sign that the body is fighting off an infection.

See also

• Lymphatic system
• Lymphocyte
• Immune system

External links

• National Cancer Institute: Lymph Nodes and Cancer

Lymph gland Resources
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