Long Head of Biceps Femoris
The Long Head of Biceps Femoris arises from the posteromedial aspect of the lower part of the ischial tuberosity in common with the semitendinosus. It attaches to the head of the fibula. It has a direct relationship to the fibular collateral ligament and the common fibular nerve.
Hamstring rupture and microvascular tears are all too familiar - these are painful and sometimes require a lengthy recovery period. The hamstrings cause extension of the thigh, flexion of the leg, and medial or lateral rotation of the flexed leg. The tibial nerve innervates the semimembranosus, semitendinosus, and the long head of the biceps femoris. A branch of the common fibular nerve innervates the short head of the biceps.