Anatomy Final #1

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Author:
rwh824
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140456
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Anatomy Final #1
Updated:
2012-03-08 00:56:10
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Anatomy Final UWS
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thigh
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  1. What is the origin of the semitendinosus muscle?
    Ischial tuberosity
  2. What is the insertion of the semitendinosus muscle?
    medial surface of upper tibia
  3. What is the action of the semitendinosus muscle?
    extends thigh; flexes/rotates leg medially
  4. What innervates the semitendinosus muscle?
    tibial protion of sciatic nerve- L5, S1, S2
  5. What posterior thigh muslces originate at the ischial tuberosity?
    semitendinosus, semimembranosus, and long head of biceps fermoris
  6. What is the origin of the semimembranosus muscle?
    ischial tuberosity
  7. What is the insertion of the semimembranosus muscle?
    medial condyle of tibia
  8. What is the action of the semimembranosus muscle?
    extends thigh; flexes and rotates leg medially
  9. What is the innervation of the semimembranosus muscle?
    tibial portion of sciatic nerve- L5, S1, S2
  10. What is the origin of the biceps femoris muscle?
    • long head: ishial tuberosity
    • short head: linea aspera and upper supracondylar line
  11. What is the insertion of the biceps femoris muscle?
    head of fibula
  12. What is the action of the biceps femoris muscle?
    extends thigh; flexes and rotates leg medially
  13. What is the innervation of the biceps femoris muscle?
    • long head: tibial division of sciatic nerve
    • short head: common peroneal division of sciatic nerve
  14. What spinal nerves innervate the muscles of the posterior thigh?
    L5, S1, S2
  15. What supplies blood to the posterior thigh muscles?
    profunda fermois and posterior branches of obturator arteries
  16. Where does a torn hamstring usually occur?
    proximal attachment
  17. What is the most commonly torn hamstring?
    semimembranosus muscle
  18. What is the femoral artery a continuation of? Where does it change names?
    external iliac artery; once it passes deep to inguinal ligament
  19. What are the branches of the femoral artery?
    superificial circumflex iliac, superficial epigastric, superficial and deep external pudendal, profunda femoris, and descending genicular arteries
  20. What is the chief artery of the thigh?
    profunda femoris artery
  21. What are the branches of the profunda fermoris artery?
    medial femoral cirumflex, lateral femoral circumflex, and perforating arteries
  22. What causes intermittent claudication?
    • obstruction of femoral, popliteal, or posterior tibial arteries
    • blockage is most common in adductor hiatus
  23. What are signs of intermittent claudication?
    pain in calf and foot when walking, may show decreased pulse below blockage, pain disappears at rest
  24. What are the tributaries of the femoral vein?
    great saphenous vein, corresponding veins to branches of femoral artery
  25. What vein is typically used for coronary artery bypass grafting?
    great saphenous vein (because it has lots of tributaries)
  26. What is the origin of the pectineus muscle?
    superior ramus of pubis
  27. What is the insertion of the pectineus muscle?
    pectineal line of femur; inferior to lesser trochanter
  28. What is the action of the pectineus muscle?
    ADD and flexion of thigh; assists with MR/IR
  29. What is the innervation of the pectineus muscle?
    fermoral nerve (L2, L3); may receive a branch from obturator nerve
  30. What is the blood supply of the pectineus muscle?
    anteroir branch of obturator artery
  31. What is the origin of the posas major muscle?
    sides of T12-L5 and IVD; TP's of all lumbars
  32. What is the insertion of the posas major muscle?
    lesser trochanter
  33. What is the action of the posas major muscle?
    flexion of thigh or trunk; stabilize hip joint
  34. What is the innervation of the posas major muscle?
    ventral rami of L1, L2
  35. What is the blood supply of the posas major muscle?
    fermoral and medial femoral circumflex artery
  36. What is the origin of the iliacus muscle?
    iliac crest and fossa, ala of sacrum, anterior sacroiliac lgt.
  37. What is the insertion of the iliacus muscle?
    tendon of psoas major; lesser trochanter and femur distal to it
  38. What is the action of the iliacus muscle?
    flexion of thigh or trunk; stabilize hip joint
  39. What is the innervation of the iliacus muscle?
    femoral nerve- L2, L3
  40. What is the blood supply of the iliacus muscle?
    femoral and medial femoral circumflex arteries
  41. What is the origin of the sartorius muscle?
    ASIS and superior part of notch inferior to it
  42. What is the insertion of the sartorius muscle?
    superior part medial tibia (pes anserinus)
  43. What is the action of the sartorius muscle?
    flexion, ABD, LR/ER of thigh; flexion leg; MR/IR leg when knee is fixed
  44. What is the innervation of the sartorius muscle?
    femoral nerve - L2, L3
  45. What nerve innervates the anterior thigh muscles? (except psoas major)
    femoral nerve
  46. What is the origin of the rectus femoris?
    AIIS and ilium superior to acetabulum
  47. What is the insertion of the quadriceps femoris?
    tibial tuberosity via patellar tendon
  48. What is the action of the quadriceps femoris?
    extension of leg: flexion of thigh; steadies hip joint
  49. What is the innervation of the quadriceps femoris?
    femoral nerve- L2, L3, L4
  50. What is the blood supply of the quadriceps femoris?
    femoral artery
  51. What is the origin of the vastus lateralis muscle?
    greater trochanter and lateral lip linea aspera
  52. What is the insertion of the vastus lateralis muscle?
    tibial tuberosity via patellar tendon
  53. What is the action of the vastus lateralis muscle?
    extension of leg
  54. What is the innervation of the vastus lateralis muscle?
    femoral nerve- L2, L3, L4
  55. What is the blood supply of the vastus lateralis muscle?
    femoral and profunda femoris arteries
  56. What is the origin of the vastus intermedius muscle?
    anterior and lateral surfaces of shaft of femur
  57. What is the insertion of the vastus intermedius muscle?
    tibial tuberosity via patellar tendon
  58. What is the action of the vastus intermedius muscle?
    extension of leg
  59. What is the innervation of the vastus intermedius muscle?
    femorla nerve- L2, L3, L4
  60. What is the blood supply of the vastus intermedius muscle?
    femoral and profunda femoris arteries
  61. What is the origin of the vastus medialis muscle?
    intertrochanteric line and medial lip of linea aspera
  62. What is the insertion of the vastus medialis muscle?
    tibial tuberosity via patellar tendon
  63. What muscles make up the quadiceps femoris?
    rectus femoris, vastus lateralis, vastus intermedius, vasus medialis
  64. What is the origin of the adductor longus muscle?
    body of pubis inferior to pubic crest
  65. What is the insertion of the adductor longus muscle?
    middle 1/3 of linea aspera
  66. What is the action of the adductor longus muscle?
    ADD thigh
  67. What is the innervation of the adductor longus muscle?
    anterior division, obturator nerve- L2, L3, L4
  68. What is the blood supply of the adductor longus muscle?
    anterior banch obturator artery
  69. What is the origin of the adductor brevis muscle?
    body and inferior ramus of pubis
  70. What is the insertion of the adductor brevis muscle?
    pectineal line and proximal part of linea aspera
  71. What is the action of the adductor brevis muscle?
    ADD and limited flexion of thigh
  72. What is the innervation of the adductor brevis muscle?
    anterior division obturator nerve- L2, L3, L4
  73. What is the blood supply of the adductor brevis muscle?
    anterior branch, obturator artery
  74. What artery supplies most of the medial thigh?
    anterior branch obturator artery
  75. What is the origin of the adductor magnus muscle?
    • adductor part- inferiori ramus of pubis, ramus of ischium
    • hamstring part- ischial tuberosity
  76. What is the insertion of the adductor magnus muscle?
    • adductor part- gluteal tuberosity, linea aspera, medial supracondylar line
    • hamstring part- adductor tubercle
  77. What is the action of the adductor magnus muscle?
    • ADD thigh
    • adductor part- flexes thigh
    • hamstring part- extends thigh
  78. What is the innervation of the adductor magnus muscle?
    • adductor part- posterior division, obturator nerve- L2, L3, L4
    • hamstring part- tibial division of sciatic nerve- L4
  79. What is the blood supply of the adductor magnus muscle?
    anterior branch obturator and perforating arteries
  80. What is the origin of the gracilis muscle?
    body and inferior ramus of pubis
  81. What is the insertion of the gracilis muscle?
    superior part of medial surface of tibia (pes anserinus)
  82. What is the action of the gracilis muscle?
    ADD thigh, flexes leg; MR/IR of leg
  83. What is the innervation of the gracilis muscle?
    anterior division, obturator nerve- L2, L3
  84. What is the blood supply of the gracilis muscle?
    anterior branch obturator artery
  85. What is the origin of the obturator externus muscle?
    margins of obturator foramen and obturator membrane
  86. What is the insertion of the obturator externus muscle?
    trochanteric fossa of femur
  87. What is the action of the obturator externus muscle?
    LR/ER of thigh; steadies femoral head
  88. What is the innervation of the obturator externus muscle?
    posterior division, obturator nerve- L3, L4
  89. What is the blood supply of the obturator externus muscle?
    anterior branch obturator artery
  90. What are the boundaries of the femoral triangle?
    • base- inguinal lgt
    • medial- lateral border of adductor lognus
    • lateral- sartorius
    • floor- pectineus, iliopsoas muscles
    • roof- fascia lata, cribiform fascia, subcutaneous tissue and skin
  91. What is in the femoral triangle?
    femoral nerve, femoral sheath containing femoral artery, vein, and deep inguinal lymph nodes and vessels, lacuna musculorum, femoral canal

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