Description
The left lumbar lymph nodes form part of the parietal abdominal lymph nodes. They are arranged around the length of the abdominal aorta.
The left lumbar lymph nodes can be subcategorized into three groups: the lateral aortic lymph nodes, the preaortic lymph nodes, and the retroaortic lymph nodes. These three groups are interconnected, forming a horseshoe-like arrangement around the abdominal aorta and hence are also called as para-aortic lymph nodes.
The lumbar lymph nodes receive lymph from the common iliac lymph nodes as a pathway from the lower limb. In addition, lumbar lymph nodes also receive lymph from visceral lymph nodes and their vessels draining abdominal organs.
Related parts of the anatomy
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Lymph Node
Lymph nodes are a part of the lymphatic system, which also includes lymphatic vessels that collect interstitial fluid or lymph (including invaded microbes in case of infections) from all vascularized tissues and discharge it into their draining lymph nodes.