Muscle
Semitendinosus
Medial hamstring, long tendon
High-yield
Long tendon of the pes anserinus; flexes the knee and medially rotates the flexed leg. Tibial division.
Overview
A medial hamstring with a long cord-like distal tendon, inserting at the pes anserinus and often harvested for ACL grafts.
Reference facts
- Origin
Ischial tuberosity
- Insertion
Superomedial surface of the tibia (pes anserinus)
- Action
Flexes the knee, medially rotates the flexed leg, and extends the hip
- Innervation
Tibial division of the sciatic nerve (L5, S1, S2)
- Blood supply
Perforating branches of the deep femoral artery