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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Medical definitions for lumbar plexus

lumbar plexus

n.

A nerve plexus formed by the ventral branches of the first four lumbar nerves and lying in the substance of the psoas muscle.
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 Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.