Medial Hamstrings Semitendinosus And Semimembranosus

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U. extremity, medial view

U. extremity, medial view

Hamstring Muscles Action
Rt. extremity, posterolateral view

SEMITENDINOSUS

Origin: Tuberosity of the ischium by the tendon common with the long head of the biceps femoris.

Insertion: Proximal part of the medial surface of the body of the tibia and deep fascia of the leg.

Action: Flexes and medially rotates the knee joint. Extends and assists in medial rotation of the hip joint.

SEMIMEMBRANOSUS

Origin: Tuberosity of the ischium, proximal and lateral to the biceps femoris and the semitendinosus.

Insertion: Posteromedial aspect of the medial condyle of the tibia.

Action: Flexes and medially rotates the knee joint. Ex -tends and assists in medial rotation of the hip joint.

Curvy Milf Gifs

Patient: Prone.

Fixation: The examiner should hold the thigh down firmly on the table. (To avoid covering the muscle belly of the medial hamstrings, fixation is not illustrated.)

Test: Flexion of the knee between 50° and 70°, with the thigh in medial rotation and the leg medially rotated on the thigh.

Pressure: Against the leg, proximal to the ankle, in the direction of knee extension. Do not apply pressure against the rotation component.

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