Lymph nodes
Lymph Nodes
Lymph nodes (pronunciation: /ˈlɪmf ˈnoʊdz/) are small, bean-shaped structures that produce and store cells that fight infection and disease. They are a vital part of the immune system and are primarily responsible for the immune response.
Etymology
The term "lymph node" comes from the Latin lympha, meaning water, and the Greek nodos, meaning knot. This is likely due to the nodes' function in filtering lymph fluid.
Function
Lymph nodes are responsible for the production of immune cells (such as lymphocytes, monocytes, and plasma cells) that fight off infections and diseases. They also act as filters for the lymph fluid, removing foreign particles and cancer cells.
Location
Lymph nodes are located throughout the body, but they are most easily detected in areas such as the neck, armpit, and groin where they are clustered.
Related Terms
- Lymphatic system: The network of tissues and organs that help rid the body of toxins, waste and other unwanted materials.
- Lymph: A clear fluid that travels through the lymphatic system and carries cells that help fight infections and diseases.
- Lymphocytes: A type of white blood cell that is part of the immune system.
- Monocytes: A type of white blood cell that can quickly move to sites of infection in the body.
- Plasma cells: A type of white blood cell that produces antibodies.
External links
- Medical encyclopedia article on Lymph nodes
- Wikipedia's article - Lymph nodes
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