lumbar-plexus

lumbar plexus

noun Anatomy.
a network of nerves originating in the spinal nerves of the midback region and innervating the pelvic area, the front of the legs, and part of the feet.
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American Heritage
Medical Dictionary

lumbar plexus n.

  1. A nerve plexus formed by the ventral branches of the first four lumbar nerves and lying in the substance of the psoas muscle.

  2. A lymphatic plexus formed of about twenty lymph nodes and connecting vessels situated along the aorta and the common iliac vessels.

The American Heritage® Stedman's Medical Dictionary
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