Semitendinosus
Thighs
- Origin
- Ischial tuberosity
- Insertion
- Medial surface of the upper tibia (pes anserinus)
- Action
- Flexes the knee, extends the hip and medially rotates the leg
- Nerve supply
- Tibial division of the sciatic nerve (L5–S2)
The inner hamstring with a long, cord-like lower tendon, which gives it its name. It lies on top of the semimembranosus.