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What do inguinal lymph nodes do?

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Quick Answer

Inguinal lymph nodes serve as part of the body's overall lymphatic system, which is responsible for maintaining the bloodstream's fluid balance and filtering waste as well as aiding the body's immune defense system. There are two types of inguinal lymph nodes: the superficial inguinal lymph nodes and the deep inguinal lymph nodes.

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Full Answer

The superficial inguinal lymph nodes are found in the Scarpa's femoral triangle, located in the upper areas of an individual's inner thigh. Overall, they are comprised of ten lymph nodes that collectively form a chain beneath the inguinal ligament. These nodes are beneath one of the body's abdominal tissue layers known as Camper's fascia, and they drain into the body's deep inguinal lymph nodes.

These deep nodes are located below the connective tissue of the upper areas of the inner thigh, known as the cribriform fascia, and can also be found on the medial side of the body's femoral vein, located close to an individual's midline. The body has between three and five of these nodes. The top such node is known as Cloquet's node, and it is the uppermost of the body's deep inguinal lymph nodes located underneath the inguinal ligament. These nodes drain in a sequence, first to a person's external iliac lymph nodes, then to the pelvic lymph nodes, and ultimately to the paraaortic lymph nodes.

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