- Anatomy:
- origin: ischial tuberosity w/ tendon of
biceps femoris;
- insertion:
pes arserinus
- action:
- flexes and medially rotates the calf at the knee; extends, adducts and medially rotates the thigh at the hip;
- reversed origin-insertion action:
- when leg is fixed, assists posterior stability of the pelvis and extends the pelvis on the hip;
- nerve supply: sciatic (tibial branch, which develops 2 branches),
L4 ,
L5 S1,
S2;
- synergists: semimembranosus,
biceps femoris,
gastrocnemius,
gracilis,
sartorius;
Late reconstruction of the patellar tendon.
The semitendinosus: anatomic considerations in tendon harvesting.
The Proximal Origin of the Hamstrings and Surrounding Anatomy Encountered During Repair.
A Cadaveric Study.
