innervated by innervated_by has muscle origin has muscle origin has muscle insertion has muscle insertion has muscle antagonist Homo sapiens femur tibial nerve biceps femoris http://upload.wikimedia.org/wikipedia/commons/b/bc/Biceps_femoris_muscle_long_head.PNG EMAPA:35170 UBERON:0001374 Wikipedia:Biceps_femoris_muscle SCTID:181672002 NCIT:C53147 BTO:0003418 galen:BicepsFemoris The biceps femoris is a muscle of the posterior (the back) thigh. As its name implies, it has two parts, one of which (the long head) forms part of the hamstrings muscle group. [WP,unvetted]. FMA:22356 UMLS:C0224449 EFO:0001418 MA:0002270 musculus biceps femoris biceps femoris muscle quadriceps femoris muscle of posterior compartment of hindlimb stylopod proximal epiphysis of fibula condyle of tibia