Hamstring Group (Overview)

Region: Hip & Thigh Muscles · All hip & thigh muscles

Hamstring Group (Overview) at a glance

OriginIschial tuberosity (the sitting bone)
InsertionUpper tibia and fibula, either side of the knee
ActionsBend the knee; Extend the thigh (as in the backswing of walking and running)
Nerve supplySciatic nerve, mainly tibial division (L5–S2)

◆ Good to know

Biceps femoris (lateral), semitendinosus and semimembranosus (medial) — the posterior thigh compartment, covered individually in this guide; hamstring strains are the commonest muscle injury in sprint sports.

Please note: This page is an anatomy education summary for students and curious readers, not medical advice. Attachment points are given in their classic short form; individual anatomy varies, and detailed dissection-level descriptions belong in an anatomy atlas.