Superior mesenteric lymph nodes
(Redirected from Superior mesenteric lymph node)
Superior Mesenteric Lymph Nodes are a group of lymph nodes located in the abdomen, specifically around the superior mesenteric artery. They play a crucial role in the immune system, helping to filter harmful substances and fight infections.
Anatomy[edit | edit source]
The superior mesenteric lymph nodes are located in the mesentery, a fold of the peritoneum that attaches the small intestine to the posterior wall of the abdomen. They are arranged around the superior mesenteric artery, which supplies blood to a large portion of the small intestine and part of the large intestine.
Function[edit | edit source]
Like all lymph nodes, the superior mesenteric lymph nodes are part of the body's immune system. They filter lymph, a fluid that contains white blood cells, for harmful substances such as bacteria and viruses. When these substances are detected, the lymph nodes produce more white blood cells to fight off the infection.
Clinical Significance[edit | edit source]
Enlargement of the superior mesenteric lymph nodes, known as lymphadenopathy, can be a sign of infection or disease in the intestines. This can be caused by a variety of conditions, including appendicitis, Crohn's disease, and cancer. In some cases, the lymph nodes may need to be biopsied to determine the cause of the enlargement.
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