Hamstrings Muscle Group - Anatomy & Physiology

Click on desired Hamstrings Muscle below for Anatomy & Physiology Information

Deep Layer of Hamstrings

The 3 Muscles that Make up the Hamstrings

Semimembrinosos | Semitendinosus | Biceps Femoris



Cross Section of Hamstrings

Click on desired Hamstrings Muscle (above) for Anatomy & Physiology Information


Major Arteries:

  • Inferior gluteal artery

  • Popliteal artery

  • Perforating arteries


Neural Innervation:

  • Sciatic nerve

  • Tibial nerve





Primary Concentric Functions:

  • Knee flexion

  • Hip extension


Eccentric Functions:

  • Deceleration of knee extension


Isometric Function:

  • Assists dynamically stabilize the lumbo-pelvic-hip complex during functional movement





More Images of the Hamstrings Muscle

Hamstrings Muscle Group




More Information about the Hamstrings Muscle Group

There are two primary hypothesis about the etymology of the hamstrings muscle group.  One is because ham which originally referred to the fat & muscle behind the knee as well as the tendons which have a string like appearance.

The other proposed origin of hamstrings is because the legs of ham used to be hung through a hoook through the space between the femur and the tendons located behind the knee & ham/pork used to be more common in England than beef & lamb.




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