(Hamstrings) Biceps Femoris: Long Head

hamstring-muscles-origin-labeledknee-model-lateral-view-labeledMuscle Origin

Ischial tuberosity to head of fibula and lateral condyle of tibia.

Common tendon with semitendinosus from superior medial quadrant of the posterior portion of the ischial tuberosity.


The main attachment is to the styloid process of the fibula, forming a semicircle around the lateral collateral ligament. The remainder splits into three laminae: the intermediate lamina fuses with the lateral fibular collateral ligament, the others pass superficial and deep to the ligament to attach to the lateral condyle of the tibia. The Wellness Digest


Flexes lower leg at knee.

Flexes knee joint, laterally rotates knee joint, extends hip joint.

Innervation – Nerve control

Tibial portion of the sciatic nerve (L5,S1).


Deep femoral artery, perforating arteries.

The deep femoral artery travels down the thigh closer to the femur than the femoral artery, while the perforating arteries are three arteries that branch from the deep artery of the thigh as it descends anterior to the adductor brevis muscle.

Antagonist muscles

Quadriceps muscle.

The quadriceps are a large muscle group that includes the four muscles on the front of the thigh, and it is the great extensor muscle of the knee.

Pictures of muscles


Trigger Point Referrals


Stretching description








Additional Resources
American Academy of Manual Medicine
University of Washington, Department of Radiology
The Wellness Digest

Chandler Physical Therapy © 2014 Frontier Theme