perforates vastus | | | | | | | | | | | | | | | | | | | | | | | medialis | | | | | | | | | | | | | |x| | | | | | | | | branch to vasti innervates| | | | | | | | | | | | | | | | | | | | | | | extensor iliotibialis | | | | | | | | | | | | | | | | | | | | | | | lateralis | | | | | | | | | | |x| | | | | | | | | | | | anterior branch of ante- | | | | | | | | | | | | | | | | | | | | | | | rior division cutaneous | | | | | | | | | | | | | | | | | |x|x| | | |x | | | | | | | | | | | | | | | | | | | | | | | Sciatic nerve | | | | | | | | | | | | | | | | | | | | | | | twig to pars caudifemora- | | | | | | | | | | | | | | | | | | | | | | | lis independent | | |x| | | | | | | | | | | | | | | | | | | | branch to flexor cruris | | | | | | | | | | | | | | | | | | | | | | | lateralis does not | | | | | | | | | | | | | | | | | | | | | | | perforate caudofemoralis|x|x| |x| | | | |x|x|x|x|x| | | |x | | | | | | paraperoneal nerve enters | | | | | | | | | | | | | | | | | | | | | | | peroneal sheath |x| |x|x| | |x| | | | | | | | | | |x|x| | | | cutaneous peroneal branch | | | | | | | | | | | | | | | | | | | | | | | perforates gastrocnemius| | | | | | | | | | | | | | | | | | | | | | | pars externa | | | | | | |x| | | | | | | | | | | | | | | | cutaneous peroneal branch | | | | | | | | | | | | | | | | | | | | | | | absent | | |x|x| | | |x| | | | | | | | | | | | | | | distal cutaneous tibial | | | | | | | | | | | | | | | | | | | | | | | branch absent | | | | | | | |x| | | | | | | | | | | | | | | twig to tail present | | |x| | |x| |x| | | | | | | |x|x | |x| | |x| nonmuscular peroneal twig | | | | | | | | | | | | | | | | | | | | | | | deep to vastus lateralis| | | | | | | | | | | | | | | | | | | | | | | pars postica | | |x|x| | | |x| | | | | | | | |x | | | | | | branch to flexor cruris | | | | | | | | | | | | | | | | | | | | | | | medialis from posterior | | | | | | | | | | | | | | | | | | | | | | | tibial division | | | | | | | | | | | | |x| | | | |x|x| | | | extra twigs join cutaneous| | | | | | | | | | | | | | | | | | | | | | | tibial branches | | | | | | | | | | | | |x| | | | | | | | | | branch to flexor cruris | | | | | | | | | | | | | | | | | | | | | | | medialis an independent | | | | | | | | | | | | | | | | | | | | | | | division | | | | | | | | | | | | | | | | | | | |x|x|x| branch to flexor cruris | | | | | | | | | | | | | | | | | | | | | | | medialis perforates | | | | | | | | | | | | | | | | | | | | | | | flexor | | | | | | | | | | | | | | | | | | | | | | | ischiofemoralis | | | | | | | | | | | | | | | | | | |x| | | |