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lumbosacral plexus

a network of nerve fibers derived from the spinal roots of the fourth and fifth lumbar nerves and first through fourth sacral nerves (see spinal nerve). It supplies the muscles of the leg and foot. The largest derivative of the lumbosacral plexus is the sciatic nerve. Also called lumbrosacral plexus.

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Psychology term of the day

November 22nd 2024

spaying

spaying

n. the surgical removal of the ovaries of a female mammal as a sterilization procedure.