muscles gluteal

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Author:
Ghoelix
ID:
145834
Filename:
muscles gluteal
Updated:
2012-04-05 05:00:58
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muscles gluteal
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muscles gluteal
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  1. Gluteus minimus...
    • Origin - gluteal fossa, slightly anterior
    • Insertion - greater trochanter, slightly anterior
    • Function - Abducts thigh, rotates thigh medially
    • Nerve supply - superior gluteal nerve
  2. Gluteus medius...
    • Origin - Gluteal fossa, along iliac crest
    • Insertion - greater trochanter, slightly posterior to glut. minimus
    • Function - abduct thigh and rotate rotate medially
    • Nerve supply - superior gluteal nerve
  3. Gluteus maximus...
    • Origin - gluteal fossa, sacrum, coccyx,
    • Insertion - gluteal tuberosity ( upper part of linea aspera - thin ridge on posterior middle of femur ) and iliotibial tract
    • Function - extend thigh, lateral rotation
    • Nerve supply - inferior gluteal nerve
  4. Tensor fascia latae, illiotibial tract / band...
    • Origin - anterior superior iliac spine, adjacent part of iliac crest
    • Insertion - iliotibial tract
    • Function - stabalizes thigh to hip when body's weight is on one leg
    • Nerve supply - superior gluteal nerve
  5. Iliotibial tract / band...
    • Origin - antereolateral iliac tubercle of iliac crest
    • Insertion - lateral condyle of tibia
    • Function - stabalizes knee during extension
  6. Pirformis...
    • Origin - anterior saccrum - through greater sciatic foramen, behind joint, to greater trochanter
    • Insertion - greater trochanter
    • Function - rotate thigh laterally, maintain integrity of hip
    • Nerve supply - 1st and 2nd sacral nerves
  7. Superior gemellus...
    • Origin - Ischial spine
    • Insertion - tendon of obturator internus which inserts into greater trochanter
    • Function - rotates thigh laterally
    • Nerve supply - sacral plexus
  8. Obturator internus...
    • Origin - inner surface of obturator membrane ( which covers the obturator foramen ) and surrounding bone, through lesser sciatic foramen, behind hip joint
    • Insertion - greater trochanter
    • Function - lateral rotation of thigh, maintain integrity of hip joint
    • Nerve supply - sacral plexus
  9. Inferior gemellus -
    • Origin - ischial tuberosity
    • Insertion - tendon of obturator internus which inserts to greater trochanter
    • Function - lateral rotation of thigh and maintains integrity of hip
    • Nerve supply - sacral plexus
  10. quadratus femoris...
    • Origin - ischial tuberosity, behind joint
    • Insertion - gluteal tubercle ( ridge just above linea aspera and just below intertrochanteric crest )
    • Function - rotate thigh laterally, maintain integrety of hip joint, adduction of thigh
    • Nerve supply - sacral plexus, S1, S2
  11. Obturator externus...
    • Origin - external surface of obturator membrane ( anterior ) plus surrounding bone, under / behind joint
    • Insertion - trochanteric fossa ( medial ( kind of inside ) surface of greater trochanter )
    • Function - rotates thight laterally, maintains integrity of hip

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