Joe Muscolino

Share This

The semitendinosus of the hamstring group. The biceps femoris has been ghosted in.

The Semitendinosus is a member of the Hamstring Group, which is composed of the:

  • Semitendinosus
  • Semimembranosus
  • Biceps femoris



  • The semitendinosus attaches from the ischial tuberosity to the pes anserine tendon (at the proximal anteromedial tibia).



  • Flexes the leg at the knee joint.
  • Extends the thigh at the hip joint.
  • Posteriorly tilts the pelvis at the hip joint.
  • Medially rotates the leg at the knee joint.



  1. The semitendinosus is named for its long distal tendon.
  2. The semitendinosus is one of three muscles that attach into the pes anserine tendon (the other two are gracilis and sartorius). Pes anserine literally means goose foot.