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Semitendinosus
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| Semitendinosus | |
|---|---|
| Muscle Type | |
| Origin | Ischial tuberosity |
| Insertion | As part of the pes anserine tendon, onto the medial superior tibia |
| Action | flexes knee joint, medially rotates knee joint (when the knee is flexed beyond 90 degrees), extends hip joint (less than biceps femoris) |
| Synergists | |
| Antagonists | Quadriceps Femoris |
| Spinal innervation | L5, S1, S2 |
| Peripheral Innervation | Tibial Nerve |
| Vasculature | Inferior gluteal artery, perforating arteries, popliteal artery |
