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The lymph nodes are small nodules that form part of the lymphatic system, which distributes various immune-related cells around the body. Lymph nodes tend to swell if there is a nearby infection, because the lymph nodes are involved in the immune system's fight against the infection (see swollen lymph nodes). The best known lymph nodes are in the neck, the armpits, and the groin. However, there are a great many lymph nodes all over the body.
Lymph nodes: Lymph nodes are glands that consist of lymphatic tissues enclosed by a fibrous capsule. Lymph nodes contain scavenging white blood cells that fight infection and prevent its spread to more areas of the body. Lymph nodes act as filters that strain out potentially harmful pathogens and microorganisms from lymph fluid that has drained from tissues or organs before it is returned to the venous circulation. Swollen lymph nodes are often a sign of disease or infection. Many lymph nodes are found in the axilla and groin areas.
Lymph nodes contain sinuses, germinal centers, trabeculae, scavenger cells, and reticular fibers. Conditions that can afflict lymph nodes include lymphadenopathy, cat scratch fever, swollen lymph nodes, metastasis of cancer, leukemia, and lymphoma.
Lymph nodes: Small, bean-shaped organs of the immune system distributed throughout the body tissue. (Source: excerpt from NHLBI, Sarcoidosis: NHLBI)
The following organs are closely related to the organ: Lymph nodes:
The following conditions are related to the organ: Lymph nodes:
The following are other names for the organ: Lymph nodes:
The following list contains sub-parts of the organ: Lymph nodes:
These symptoms are related to afflictions of the organ: Lymph nodes:
Condition count: 9 ; see list below.
Organ subtypes: sentinel lymph nodes
Organs: list of all organs
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