LE Anterior thigh

Origin Insertion Nerve Action Psoas major T12 – L5 vertebrae IV disks iliopsoas Psoas major Origin T12 – L5 vertebrae IV disks Insertion Lesser trochanter Nerve Anterior rami of lumbar nerves (L1,L2, & L3) Action Flexes the thigh

Origin Insertion Nerve Action Iliacus Iliac crest Lesser trochanter iliopsoas Iliacus Origin Iliac crest Insertion Lesser trochanter Nerve Femoral nerve (L2 & L3) Action Flexes thigh

Origin Insertion Nerve Action Tensor fasciae latae ASIS Iliac crest iliopsoas Tensor fasciae latae Origin ASIS Iliac crest Insertion Iliotibial tract Lateral condyle of tibia Nerve Superior gluteal nerve (L4 – L5) Action Abducts, flexes, & medially rotates hip

Origin Insertion Nerve Action Sartorius ASIS Medial surface of tibia iliopsoas Sartorius Origin ASIS Insertion Medial surface of tibia Nerve Femoral nerve (L2 & L3) Action Flexes, abducts, and laterally rotates hip

Origin Insertion Nerve Action Rectus femoris AIIS Ilium Quadriceps femoris Rectus femoris Origin AIIS Ilium Insertion Base of patella Patellar ligament Tibial tuberosity Nerve Femoral nerve (L2,L3, and L4) Action Extends leg at knee joint Steadies hip joint Helps iliopsoas flex thigh

Origin Insertion Nerve Action Vastus lateralis Greater trochanter Quadriceps femoris Vastus lateralis Origin Greater trochanter Insertion Base of patella Patellar ligament Tibial tuberosity Nerve Femoral nerve (L2,L3, and L4) Action Extends leg at knee joint

Origin Insertion Nerve Action Vastus medialis Interochanteric line Quadriceps femoris Vastus medialis Origin Interochanteric line Linea aspera Insertion Base of patella Patellar ligament Tibial tuberosity Nerve Femoral nerve (L2,L3, and L4) Action Extends leg at knee joint

Origin Insertion Nerve Action Vastus intermedius Quadriceps femoris Vastus intermedius Origin Anterior and lateral surfaces of femur Insertion Base of patella Patellar ligament Tibial tuberosity Nerve Femoral nerve (L2,L3, and L4) Action Extends leg at knee joint

Origin Insertion Nerve Action Pectineus Superior pubic ramus Lesser trochanter Nerve Femoral nerve (L2 and L3) Action Adducts, flexes, and medially rotates thigh

Origin Insertion Nerve Action Adductor longus Pubis Linea aspera of femur Nerve Obturator nerve ( L2,L3, and L4) Action Adducts thigh

Origin Insertion Nerve Action Adductor brevis Pubis Pectineal line Obturator nerve ( L2,L3, and L4) Action Adducts thigh

Origin Insertion Nerve Action Adductor magnus Inferior pubic ramus Ischial tuberosity Insertion Gluteal tuberosity Linea aspera Adductor tubercle Nerve Adductor part: obturator nerve (L2,L3, and L4) Hamstring part: Tibial part of sciatic nerve (L4) Action Adducts thigh

Origin Insertion Nerve Action Gracilis Pubis Medial surface of tibia Obturator nerve (L2 and L3) Action Adducts

Origin Insertion Nerve Action Obturator externus Obturator foramen Trochanteric fossa Nerve Obturator nerve (L3 and L4) Action Laterally rotates