part of part of has part has part innervates leg nerve sciatic nerve EHDAA2:0001779 GAID:852 ischiadic nerve MA:0001172 UBERON:0001322 BTO:0001221 UMLS:C0036394 OpenCyc:Mx4rv7MlDJwpEbGdrcN5Y29ycA 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. MESH:D012584 nervus ischiadicus FMA:19034 EHDAA:5659 uberon ischiatic nerve EFO:0001417 EMAPA:18577 VHOG:0000894 CALOHA:TS-0899 nervus sciaticus 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/ skin of leg lumbosacral nerve plexus