Week 4 (anterior and posterior thigh)

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Author:
gurpleguy
ID:
282560
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Week 4 (anterior and posterior thigh)
Updated:
2014-09-16 23:35:06
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medical school
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covers thigh
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  1. illiopsoas (psoas major)
    • origin- T12-L5 vertebrae
    • insertion- lesser trochanter of femur
    • innervation- L1-L3 ventral rami
    • action- hip flexion (strongest)
  2. illiopsoas (illiacus)
    • origin- illiac fossa
    • insertion- lesser trochanter of femur
    • innervation- femoral nerve (L2-L4)
    • action- hip flexion (strongest)
  3. quadriceps femoris (rectus femoris)
    • origin- straight head- anterior inferior illiac spine (AIIS); reflected head-superior aspect of acetabulum
    • insertion- patella and tibial tuberosity via qaudriceps tendon and patellar ligament
    • innervation- femoral nerve (L2-L4)
    • action- knee extension, hip flexion (weak)
  4. quadriceps femoris (vastus lateralis)
    • origin- femur
    • insertion-┬ápatella and tibial tuberosity via qaudriceps tendon and patellar ligament
    • innervation- femoral n (L2-L4)
    • action- knee extension
  5. quadriceps femoris (vastus intermedius)
    • origin- femur
    • insertion-┬ápatella and tibial tuberosity via qaudriceps tendon and patellar ligament
    • innervation- femoral n (L2-L4)
    • action- knee extension
  6. quadriceps femoris (vastus medialis)
    • origin- femur
    • insertion-┬ápatella and tibial tuberosity via qaudriceps tendon and patellar ligament
    • innervation- femoral n (L2-L4)
    • action- knee extension
  7. satorius
    • origin- anterior superior illiac spine (ASIS) of illium
    • insertion- pes anserinus (anterior slip) aspect of the tibia
    • innervation- femoral n (L2-L4)
    • action- hip flexion, abduction of thigh, lateral rotation of thigh, knee flexion
  8. gracilis
    • origin- pubis
    • insertion- pes anserinus (middle slip) on the medial aspect of the tibia
    • innervation- obturator n (L2-L4)
    • action- adduction of thigh, knee flexion
  9. pectineus
    • origin- pubis
    • insertion- pectineal line of femur
    • innervation- femoral n (L2-L4)
    • action- addiction of thigh, medial rotation of thigh, hip flexion (weak)
  10. adductor longus
    • origin- pubis
    • insertion- linea aspera of femur
    • innervation- obturator n (L2-L4)
    • action- adduction of thigh, medial rotation of thigh, hip flexion (weak)
  11. adductor brevis
    • origin- pubis
    • insertion- linea aspera of the femur
    • innervation- obturator n (L2-L4)
    • action- adduction of thigh, medial rotation of thigh, hip flexion (weak)
  12. adductor magnus (adductor part)
    • origin- pubis/ischium
    • insertion- linea aspera of femur
    • innervation- obturator n (L2-L4)
    • action- adduction of thigh, medial rotation of thigh, hip flexion
  13. adductor magnus (hamsting part)
    • origin- pubis/ischium
    • insertion- adductor tubercle of femur
    • innervation- tibial n (L4-S3)
    • action- adduction of thigh, medial rotation of thigh, hip extension
  14. obturator externus
    • origin- pubis/ischium (obturator foramen) and obturator membrane
    • insertion- trochanteric fossa of femur
    • innervation- obturator n (L2-L4)
    • action- lateral rotation of the thigh
  15. gluteus maximus
    • origin- dorsal illium, sacrum, coccyx, sacrotuberous ligament and illiac crest
    • insertion- gluteal tuberosity and illiotibial tract
    • innervation- inferior gluteal n
    • action- hip extension, lateral rotation of thigh
  16. gluteus medius
    • origin- illium between anterior and posterior gluteal line
    • insertion- greater trochanter of femur, lateral aspect
    • innervation- superioir gluteal nerve
    • action-medial rotation, abduction of thigh, stabilization of pelvis during gait
  17. gluteus minimus
    • origin- illium, between anterior and inferior gluteal lines
    • insertion-greater trochanter of femur, anterior aspect
    • innervation- superior gluteal n
    • action-stabilazation of the pelvis during gait, medial rotation, abduction of thigh
  18. tensor fascia latae
    • origin- illiac crest, lateral aspect
    • insertion- illiotibial tract
    • innervation- superior gluteal n
    • action-stabilization of the knee in extension, hip flexion (weak), abduction of thigh
  19. piriformis
    • origin-sacrum, pelvic surface
    • insertion- greater trochanter of femur, medial aspect
    • innervation- n to piriformis
    • action-lateral rotation of thigh
  20. superior gemellus
    • origin-ischium
    • insertion- greater trochanter, medial aspect via obturator internus tendon
    • innervation- N to obturator internus
    • action-lateral rotation of thigh
  21. obturator internnus
    • origin- obturator foramen and obturator membrane, internal aspect
    • insertion- greater tochanter of femur, medial aspect
    • innervation- n to obturator internus
    • action-lateral rotation of thigh
  22. inferioir gemellus
    • origin-ischium
    • insertion- greater trochanter, medial aspect via obturator internus tendon
    • innervation- n to quadratus femoris
    • action- lateral rotation of thigh
  23. quadratus femoris
    • origin- ischium
    • insertion- quadrate tubercle of femur
    • innervation- n to quadratus femoris
    • action- lateral rotation of thigh
  24. biceps femoris (long head)
    • origin- ischial tuberosity
    • insertion- head of the fibula, lateral aspect
    • innervation- tibial n
    • action-flexion of knee, extension of hip (weak), lateral rotation of tibia
  25. biceps femoris (short head)
    • origin- linea aspera of femur
    • insertion- head of fibula, lateral aspect
    • innervation- common fibular (L4-S2)
    • action- flexion of knee, extension of hip (weak), lateral rotation of tibia
  26. semitendinosus
    • origin- ischial tuberosity
    • insertion- pes anserinus (posterior slip)
    • innervation- tibial n (L4-S3)
    • action-flexion of knee, extension of hip, medial rotation of tibia
  27. semimembranosus
    • origin- ischial tuberosity
    • insertion- medial aspect of tibial condyle
    • innervation- tibial n (L4-S3)
    • action-flexion of knee, extension of hip (weak), medial rotation of tibia

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