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.

Words nearby lumbar plexus

lumbar flexure, lumbar ganglion, lumbar hernia, lumbar iliocostal muscle, lumbar nerve, lumbar plexus, lumbar puncture, lumbar quadrate muscle, lumbar rib, lumbar splanchnic nerve, lumbar triangle

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.