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lumbar plexus

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noun Anatomy.
  1. 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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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

lumbar plexus in Medicine

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.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.