is flexed. It medially rotates the femur when the hip is extended. The muscle can also aid in counteracting the forward bending at the hip joint. Clinical significance The semitendinosus muscle may be dry needled. Additional images See also Semitendinosus Biceps femoris References External links - "Muscles (hamstrings) of the posterior compartment of the thigh." - "Muscles that form the superficial boundaries of the popliteal fossa." knee/surface/surface4 at the Dartmouth Medical School's Department of Anatomy PTCentral Hip extensors Hip medial rotators Knee flexors Knee medial rotators Thigh muscles Posterior compartment of thigh Muscles of the lower limb Hamstring