n. a bundle of spinal nerve roots and nerves resembling the appearance of a horse's tail. It consists of the second to the fifth lumbar nerves, which together innervate the area of the lumbar plexus.
n. a bundle of spinal nerve roots and nerves resembling the appearance of a horse's tail. It consists of the second to the fifth lumbar nerves, which together innervate the area of the lumbar plexus.