LE Anterior thigh
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Transcript of LE Anterior thigh
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LE Anterior thigh
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Psoas major• T12 – L5 vertebrae• IV disksOrigin
• Lesser trochanterInsertion• Anterior rami of lumbar nerves
(L1,L2, & L3)Nerve
• Flexes the thighAction
iliopsoas
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Iliacus
• Iliac crestOrigin
• Lesser trochanterInsertion
• Femoral nerve (L2 & L3)Nerve
• Flexes thighAction
iliopsoas
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Tensor fasciae latae• ASIS• Iliac crestOrigin• Iliotibial tract• Lateral condyle of tibiaInsertion
• Superior gluteal nerve (L4 – L5)Nerve
• Abducts, flexes, & medially rotates hipAction
iliopsoas
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Sartorius
• ASISOrigin
• Medial surface of tibiaInsertion
• Femoral nerve (L2 & L3)Nerve
• Flexes, abducts, and laterally rotates hipAction
iliopsoas
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Rectus femoris• AIIS• IliumOrigin• 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
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Vastus lateralis
• Greater trochanterOrigin• Base of patella• Patellar ligament• Tibial tuberosity
Insertion
• Femoral nerve (L2,L3, and L4)Nerve
• Extends leg at knee jointAction
Quadriceps femoris
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Vastus medialis• Interochanteric line• Linea asperaOrigin• Base of patella• Patellar ligament• Tibial tuberosity
Insertion
• Femoral nerve (L2,L3, and L4)Nerve
• Extends leg at knee jointAction
Quadriceps femoris
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Vastus intermedius
• Anterior and lateral surfaces of femurOrigin• Base of patella• Patellar ligament• Tibial tuberosity
Insertion
• Femoral nerve (L2,L3, and L4)Nerve
• Extends leg at knee jointAction
Quadriceps femoris
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Pectineus
• Superior pubic ramusOrigin
• Lesser trochanterInsertion
• Femoral nerve (L2 and L3)Nerve
• Adducts, flexes, and medially rotates thighAction
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Adductor longus
• PubisOrigin
• Linea aspera of femurInsertion
• Obturator nerve ( L2,L3, and L4)Nerve
• Adducts thighAction
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Adductor brevis
• PubisOrigin
• Pectineal lineInsertion
• Obturator nerve ( L2,L3, and L4)Nerve
• Adducts thighAction
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Adductor magnus• Inferior pubic ramus• Ischial tuberosityOrigin• 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 thighAction
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Gracilis
• PubisOrigin
• Medial surface of tibiaInsertion
• Obturator nerve (L2 and L3)Nerve
• AdductsAction
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Obturator externus
• Obturator foramenOrigin
• Trochanteric fossaInsertion
• Obturator nerve (L3 and L4)Nerve
• Laterally rotatesAction