lumbar plexus

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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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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