part of part of has part has part innervates leg nerve sciatic nerve A large nerve that supplies nearly the whole of the skin of the leg, the muscles of the back of the thigh, and those of the leg and foot. It begins in the lower back and runs through the buttock and down the lower limb. BTO:0001221 CALOHA:TS-0899 EFO:0001417 EHDAA2:0001779 EHDAA:5659 EMAPA:18577 FMA:19034 GAID:852 MA:0001172 MESH:D012584 OpenCyc:Mx4rv7MlDJwpEbGdrcN5Y29ycA UBERON:0001322 UMLS:C0036394 VHOG:0000894 ischiadic nerve ischiatic nerve mouse sciatic nerve origins predominantly from the third lumbar (L3) and L4 spinal nerves, unlike the L4 and L5 in rats - http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2700063/ nervus ischiadicus nervus sciaticus uberon skin of leg lumbosacral nerve plexus