long head of left biceps femoris
Muscular systemHeadLeftFMA45889
Nomenclature
long head of left biceps femoris
caput longum musculi bicipitis femoris (Latin)
capo lungo del bicipite femorale sinistro (Italian)
Descriptionentry
Biarticular head of biceps femoris, lateral in the posterior compartment of the thigh.
Functionentry
Flexion of the knee; extension of the hip; lateral rotation of the flexed leg.
Originentry
Ischial tuberosity, common tendon with semitendinosus.
Insertionentry
Head of the fibula and lateral condyle of the tibia.
Innervationentry
Tibial division of the sciatic nerve (L5-S2).
Blood supplyentry
Perforating branches of the deep femoral artery.
Clinical notes
Common sprinting injury, typically at the proximal myotendinous junction.
Model