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

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Text of LE Anterior thigh. Psoas major T12 – L5 vertebrae IV disks Origin Lesser...

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LE Anterior thigh Slide 2 Psoas major T12 L5 vertebrae IV disks Origin Lesser trochanter Insertion Anterior rami of lumbar nerves (L1,L2, & L3) Nerve Flexes the thigh Action iliopsoas Slide 3 Iliacus Iliac crest Origin Lesser trochanter Insertion Femoral nerve (L2 & L3) Nerve Flexes thigh Action iliopsoas Slide 4 Tensor fasciae latae ASIS Iliac crest Origin Iliotibial tract Lateral condyle of tibia Insertion Superior gluteal nerve (L4 L5) Nerve Abducts, flexes, & medially rotates hip Action iliopsoas Slide 5 Sartorius ASIS Origin Medial surface of tibia Insertion Femoral nerve (L2 & L3) Nerve Flexes, abducts, and laterally rotates hip Action iliopsoas Slide 6 Rectus femoris AIIS Ilium Origin Base of patella Patellar ligament Tibial tuberosity Insertion Femoral nerve (L2,L3, and L4) Nerve Extends leg at knee joint Steadies hip joint Helps iliopsoas flex thigh Action Quadriceps femoris Slide 7 Vastus lateralis Greater trochanter Origin Base of patella Patellar ligament Tibial tuberosity Insertion Femoral nerve (L2,L3, and L4) Nerve Extends leg at knee joint Action Quadriceps femoris Slide 8 Vastus medialis Interochanteric line Linea aspera Origin Base of patella Patellar ligament Tibial tuberosity Insertion Femoral nerve (L2,L3, and L4) Nerve Extends leg at knee joint Action Quadriceps femoris Slide 9 Vastus intermedius Anterior and lateral surfaces of femur Origin Base of patella Patellar ligament Tibial tuberosity Insertion Femoral nerve (L2,L3, and L4) Nerve Extends leg at knee joint Action Quadriceps femoris Slide 10 Pectineus Superior pubic ramus Origin Lesser trochanter Insertion Femoral nerve (L2 and L3) Nerve Adducts, flexes, and medially rotates thigh Action Slide 11 Adductor longus Pubis Origin Linea aspera of femur Insertion Obturator nerve ( L2,L3, and L4) Nerve Adducts thigh Action Slide 12 Adductor brevis Pubis Origin Pectineal line Insertion Obturator nerve ( L2,L3, and L4) Nerve Adducts thigh Action Slide 13 Adductor magnus Inferior pubic ramus Ischial tuberosity Origin Gluteal tuberosity Linea aspera Adductor tubercle Insertion Adductor part: obturator nerve (L2,L3, and L4) Hamstring part: Tibial part of sciatic nerve (L4) Nerve Adducts thigh Action Slide 14 Gracilis Pubis Origin Medial surface of tibia Insertion Obturator nerve (L2 and L3) Nerve Adducts Action Slide 15 Obturator externus Obturator foramen Origin Trochanteric fossa Insertion Obturator nerve (L3 and L4) Nerve Laterally rotates Action

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