Hamstrings Anatomy

Anatomy of the Hamstrings Muscle
The hamstring muscles are the group of three muscles located at the back of the upper leg.  These muscles work to straighten the hip joint and bend the knee joint.  The 3 muscles of the hamstrings include: the semimembranosus, the semitendinosus, and biceps femoris.  All three of these muscles originate at the pelvis, attaching at the ischium and pass behind the hip joint to help straighten the hip.  As the hamstrings extend from the hip, they diverge, with the tendon from the biceps femoris passing behind the lateral portion of the knee and attaching to the fibula.  The tendons of the semimembranosus and semitendinosus pass behind the inside of the knee and attach to the tibia

Related Injuries
- Hamstring Strain

Referenced Material
Anatomica’s Body Atlas. (2002). San Diego, CA: Thunder Bay Press (pg. 166)