Thigh Muscles

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Author:
ks1215
ID:
233133
Filename:
Thigh Muscles
Updated:
2013-09-09 17:23:39
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Thigh Muscles
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Thigh Muscles
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  1. Psoas Major Origin
    lateral processes of t12-l5
  2. Psoas Major Insertion
    lesser trochanter as the common tendon with iliacus
  3. Psoas Major Function
    flexion of thigh @ hip, active during increase or decrease in gait speed
  4. Psoas Major Innervation and Blood Supply
    • Anterior Rami (L1 L2 L3)
    • Lumbar branch of the iliolumbar artery
  5. Iliacus Origin
    Iliac Fossa
  6. Iliacus Insertion
    Lesser trochanter with the common tendon shared by psoas major
  7. Iliacus Function
    Flexed thigh @ hip, active during increase or decrease in gait speed
  8. Iliacus Innervation and Blood Supply
    • Femoral Nerve (L2 L3)
    • Iliac branch of the iliolumbar artery
  9. Sartorius Origin
    ASIS
  10. Sartorius Insertion
    medial tibia below tibial tuberosity (pes anserinus)
  11. Sartorius Function
    ABD of thigh, flexion of leg @ knee, flexion of thigh@ hip, external rotation
  12. Sartorius Innervation and Blood Supply
    • Femoral Nerve (L2 L3) 
    • femoral artery
  13. Means "goose foot" in latin and what muscles does this consist of
    Pes Anserinus: Sartorius, Gracilis, Semitendinosus
  14. Vastus Medialis Origin
    medial part of the intertrochanteric line, pectineal line of femur, medial lip of linea aspera, medial supraconylar line
  15. Vastus Medialis Insertion
    quadriceps femoris tendon, medial aspect patella
  16. Vastus Medialis Function
    extension of leg @ knee, stabilize patella during movement
  17. Vastus Medialis Innervation and blood supply
    • Femoral Nerve (L2, L3, L4)
    • Femoral Artery
  18. Vastus Lateralis Origin
    lateral part of intertrochanteric line, margin of the greater trochanter, lateral margin of gluteal tuberosity, lateral lip of linea aspera
  19. Vastus Lateralis Insertion
    quadriceps femoris tendon, lateral aspect of the patella
  20. Vastus Lateralis Function
    extension of leg @ knee, stabilize patella while in motion
  21. Vastus Lateralis Innervation and Blood Supply
    • Femoral Nerve (L2, L3, L4)
    • Lat Circulmflex Artery
  22. Vastus Intermedius Origin
    anterior and lateral upper 2/3 of femoral surface
  23. Vastus Intermedius Insertion
    quadriceps femoris tendon, lateral aspect of patella
  24. Vastus Intermedius Function
    Extension of leg @ knee, stabilization of patella during movement
  25. Vastus Intermedius Innervation and Blood Supply
    • Femoral Nerve (L2 L3 L4)
    • Femoral Artery
  26. Rectus Femoris Origin
    • Straight Head (which is medial): AIIS
    • Reflective Head (which is lateral): just superior to acetabulum
  27. Rectus Femoris Insertion
    Both: quadriceps femoris tendon, patella tendon, patella ligament, tibial tuberosity
  28. Rectus Femoris Function
    extension of leg @ knee, flexion of thigh @ hip, stabilizes patella during movement
  29. Rectus Femoris Innervation and Blood Supply
    • Femoral Artery (L2 L3 L4)
    • lateral circumflex femoral artery
  30. Biceps Femoris Origin
    • Long Head: inferior ischial tuberosity, shares tendon with semitendinosis (sacrotuberous ligament)
    • Short Head: lateral lip of linea aspera
  31. Biceps Femoris Insertion
    Both: Head of fibula
  32. Biceps Femoris Function
    Both: flexion of leg @ knee, lateral rotation of leg

    Long Head: extension of thigh @ hip, lateral rotation of thigh
  33. Biceps Femoris Innervation and Blood Supply
    • Long head: tibial portion of sciatic nerve (L5 S1 S2)
    • Short Head: common fibular portion of sciatic nerve (L5 S1 S2)

    Perforating arteries, popliteal artery, inferior gluteal artery
  34. Semitendinosus Origin
    ischial tuberosirt, shares tendon with Long head of biceps femoris (sacrotuberous ligament)
  35. Semitendinosus Insertion
    medial proximal tibia (pes anserinus)
  36. Semitendinosus Function
    flexion of leg @ knee, extension of thigh @ hip, medial rotation of thigh and lef
  37. Semitendinosus Innervation and Blood Supply
    • tibial portion of sciatic nerve (L5 S1 S2)
    • inferior gluteal artery, perforating arteries
  38. Semimembranosus Origin
    • flat tendon of superolateral ischial tuberosity 
    • (slightly lateral to semitendinosus)
  39. Semimembranosus Insertion
    medial and posterior surfaces of medial tibial condyle
  40. Semimembranosus Function
    Flexion of leg @ knee, extension of thigh @ hip, medial rotation of thigh and leg
  41. Semimembranosus innervation and blood supply
    • Tibial portion of sciatic nerve (L5 S1 S2)
    • Inferior gluteal artery, perforating artery
  42. Gracilis Origin
    exterior surface of body of pubis, ischiapubic ramus
  43. Gracilis Insertion
    medial tibia between the sartorius and semitendinosus (pes anserinus)
  44. Gracilis Function
    • Primary: ADD, flexion of leg @ knee
    • 2nd: Flexion of thigh @ hip, medial rotation
  45. Gracilis Innervation and Blood Supply
    • Obturator nerve (L2 L3)
    • obturator artery, medial circumflex femoral artery
  46. Pectineus Origin
    Pubic pectineal line
  47. Pectineus Insertion
    pectineal line of femur
  48. Pectineus Function
    • Primary: ADD, flexion of thigh @ hip
    • 2nd: medial rotation of thigh
  49. Pectineus Innervation and Blood Supply
    • Femoral Nerve (L2 L3)
    • anterior branch of obturator artery
  50. Adductor Brevis Origin
    lateral to pubic symphysis
  51. Adductor Brevis Insertion
    upper 1/3 of linea aspera
  52. Adductor Brevis Function
    • Primary: ADD
    • 2nd: Flexion of thigh @ hip, medial rotation
  53. Adductor Brevis Innervation and Blood Supply
    Obturator artery (L2 L3)

    perforating artery of deep artery of thigh
  54. Adductor Longus Origin
    Pubic tubercle
  55. Adductor Longus Insertion
    middle 1/3 of linea aspera
  56. Adductor Longus Function
    • Primary: ADD, medial rotation of thigh
    • 2nd: flexion of thigh @ hip
  57. Adductor Longus Innervation and Blood Supply
    • anterior branch of obturator nerve (L2 L3 L4)
    • deep artery of thigh
  58. Adductor Magnus Origin
    • ADD: ischial pubic ramus 
    • HAM: ischial tuberosity
  59. Adductor Magnus Insertion
    • ADD: posterior surface of proximal femur, pectineal line, medial lip of linea aspera, medial supracondylar line 
    • HAM: adductor tubercle of the femur, medial supracondylar line
  60. Adductor Magnus Function
    • ADD: ADD, assists to flex and medially rotate thigh
    • HAM: ADD, assists to extend and medially rotate thigh
  61. Adductor Magnus Innervation and Blood Supply
    • ADD: obturator nerve (L2 L3 L4)
    • HAM: tibial portion of sciatic nerve (L2 L3 L4)**weird!!!

    Both: deep artery of thigh
  62. Obturator Externus Origin
    external surface of obturator membrane and bone
  63. Obturator Externus Insertion
    intertrochanteric fossa
  64. Obturator Externus Function
    external rotation of thigh
  65. Obturator Externus Innervation and Blood Supply
    • posterior branch of obturator nerve (L3 L4)
    • Obturator artery

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