hamstrings.png

Semitendinosus

Origin: Pelvis (Ischial Tuberosity)

Insertion: Tibia (Superior/ Medial surface via Pes Anserinus tendon)

Action: Hip Extension, Knee Flexion, Medial rotation of Tibia when knee is flexed

Innervation: L5-S2 (Tibial Division of Sciatic Nerve)