Semitendinosus Ischial tuberosity, Medial condyle of Extension of flexion of leg Sciatic MUSCLES OF ORIGIN INSERTION ACTION NERVE ANTERIOR AND MEDIAL THIGH Sartorius Anterior superior iliac spine Medial surface of tibia near the Flexion, abduction, and lateral rotation Femoral knee joint of thigh; flexion of leg Tensor fasciae latae Anterior superior iliac spine of ilium Iliotibial tract Flexes thigh, abducts, and medially Superior gluteal rotates thigh; steadies trunk on thigh while standing Quadriceps femoris Anterior inferior iliac spine and Tibial tuberosity Extension of leg; flexion of thigh Femoral upper margin of acetabulum Rectus femoris Vastus lateralis Intertrochanteric line and linea Tibial tuberosity Extends leg Femoral aspera of femur Vastus medialis Intertrochanteric line and linea Tibial tuberosity Extends leg Femoral aspera of femur Vastus intermedius Upper shaft of femur Tibial tuberosity Extends leg Femoral Adductor longus Body of pubic bone Middle third of linea aspera Adduction and flexion of thigh Obturator Adductor magnus Inferior ramus of pubic bone; ramus aspera and adductor tubercle Adduction and flexion of thigh; Obturator & of ischium extension of thigh sciatic Ischial tuberosity of ischium
Semitendinosus Ischial tuberosity, Medial condyle of Extension of flexion of leg Sciatic MUSCLES OF ANTERIOR AND MEDIAL THIGH ORIGIN INSERTION ACTION NERVE Sartorius Anterior superior iliac spine Medial surface of tibia near the knee joint Flexion, abduction, and lateral rotation of thigh; flexion of leg Femoral Tensor fasciae latae Anterior superior iliac spine of ilium Iliotibial tract Flexes thigh, abducts, and medially rotates thigh; steadies trunk on thigh while standing Superior gluteal Quadriceps femoris Rectus femoris Anterior inferior iliac spine and upper margin of acetabulum Tibial tuberosity Extension of leg; flexion of thigh Femoral Vastus lateralis Intertrochanteric line and linea aspera of femur Tibial tuberosity Extends leg Femoral Vastus medialis Intertrochanteric line and linea aspera of femur Tibial tuberosity Extends leg Femoral Vastus intermedius Upper shaft of femur Tibial tuberosity Extends leg Femoral Adductor longus Body of pubic bone Middle third of linea aspera Adduction and flexion of thigh Obturator Adductor magnus Inferior ramus of pubic bone; ramus of ischium Ischial tuberosity of ischium aspera and adductor tubercle Adduction and flexion of thigh; extension of thigh Obturator & sciatic
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