Muscles of Hip and Knee Movement

Iliopsoas (posts major & iliac)

flexes hip

Tensor fasciae latae

flexes and abducts hip

Gluteus maximus

extends and laterally rotates hip

Gluteus medius

abducts and medially rotates hip

Sartorius

originates from the anterior superior iliac spine

inserts into the tibia

flexes and laterally rotates hip; flexes and medially rotates knee

Quadriceps (Femoris)- Rectus femoris

originates from the anterior inferior iliac spine and acetabulum

inserts into the tibial tuberosity

flexes hip and extends knee

Quadriceps (Femoris)- Vastus lateralis, Vastus medialis, Vastus intermedius

extends knee

Adductor longus

adducts and flexes hip

Adductor Magnus

adducts, flexes, and extends thigh

Adductor brevis

adducts and flexes thigh

Gracilis

adducts hip and flexes knee

Hamstring- Biceps femoris

originates from the ischial tuberosity and linea aspera

inserts into the fibula and tibia

flexes knee and extends hip

Hamstring- Semitendinosus

flexes knee and extends hip

Hamstring- Semimembranosus

flexes knee and extends hip