Periaortic lymph nodes

Periaortic Lymph Nodes

File:Periaortic lymph nodes.png

Illustration of the Periaortic Lymph Nodes

The Periaortic Lymph Nodes are a group of lymph nodes that are located around the aorta, the main and largest artery in the human body. They play a crucial role in the immune system, helping to filter harmful substances and fight infections.

Anatomy

The Periaortic Lymph Nodes are situated along the course of the aorta. They are divided into several groups, including the preaortic, retroaortic, and paraaortic lymph nodes. These nodes receive afferent lymphatic vessels from various organs and tissues, including the kidneys, adrenal glands, and parts of the gastrointestinal tract.

Function

The primary function of the Periaortic Lymph Nodes is to filter lymph, a clear fluid that circulates through the lymphatic system carrying cells that help fight infection and disease. They also play a role in the body's immune response, producing and storing cells that fight infection and disease.

Clinical Significance

Enlargement or inflammation of the Periaortic Lymph Nodes, known as lymphadenopathy, can be a sign of various medical conditions, including infections, autoimmune diseases, and cancers. In particular, they are often involved in the spread of cancer from organs in the abdomen and pelvis.

See Also

• Lymphatic system
• Lymph node
• Aorta