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GA 2 > Gluteal Muscles - ABD and Rotation > Flashcards

Gluteal Muscles - ABD and Rotation Flashcards

1
Q

Gluteus maximus m. - origin

A
  • ilium posterior to posterior gluteal line
  • dorsal surface of sacrum and coccyx
  • sacrotuberous ligament
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2
Q

Gluteus maximus m. - insertion

A
  • IT Tract, which inserts into lat. condyle of tibia

- some fibers insert on gluteal tuberosity

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3
Q

Gluteus maximus m. - nerve

A

Inferior gluteal n. (L5, S1, S2)

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4
Q

Gluteus maximus m. - blood supply

A

Inferior gluteal a.

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5
Q

Gluteus maximus m. - action

A
  • extends thigh (esp. from flexed position)
  • assists in ER
  • steadies thigh
  • assist in rising from sitting
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6
Q

Gluteus medius m. - origin

A

external surface of ilium b/t A&P gluteal lines

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7
Q

Gluteus medius m. - insertion

A

Lateral surface of greater trochanter of femur

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8
Q

Gluteus medius m. - nerve

A

Superior gluteal n. (L5, S1)

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9
Q

Gluteus medius m. - blood supply

A

Superior gluteal a.

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10
Q

Gluteus medius m., Gluteus minimus m., Tensor fasciae latae m. - action

A
  • abduct thigh
  • IR thigh
  • keep pelvis level when ipsilateral limb is weight-bearing and advance opposite/ unsupported side during swing phase
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11
Q

Gluteus minimus m. - origin

A

external surface of ilium b/t anterior and inferior gluteal lines

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12
Q

Gluteus minimus m. - insertion

A

anterior surface of greater trochanter of femur

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13
Q

Gluteus minimus m. - nerve

A

Superior gluteal n. (L5, S1)

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14
Q

Gluteus minimus m. - blood supply

A

Superior gluteal a.

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15
Q

Tensor fasciae latae m. - origin

A
  • ASIS

- anterior part of iliac crest

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16
Q

Tensor fasciae latae m. - insertion

A

IT Tract, which attaches to lateral condyle of tibia

17
Q

Tensor fasciae latae m. - nerve

A

Superior gluteal n. (L5, S1)

18
Q

Tensor fasciae latae m. - blood supply

A
  • ascending branch of lateral circumflex femoral a.

- superior gluteal a.

19
Q

Piriformis m. - origin

A
  • Anterior surface of sacrum

- sacrotuberous l.

20
Q

Piriformis m. - insertion

A

superior border of greater trochanter of femur

21
Q

Piriformis m. - nerve

A

Branches of anterior rami of S1, S2

22
Q

Piriformis m. - blood supply

A
  • Superior gluteal a.
  • inferior gluteal a.
  • internal pudendal a.
23
Q

Piriformis m., Obturator internus m., Superior and Inferior gemmelli m. - action

A
  • ER extended thigh
  • Abduct flexed thigh
  • Steady femoral head in acetabulum
24
Q

Obturator internus m. - origin

A

pelvic surface of obturator membrane and surrounding bones

25
Q

Obturator internus m. - insertion

A

medial surface of greater trochanter (trochanteric fossa) of femur

26
Q

Obturator internus m. - nerve

A

Nerve to obturator internus (L5, S1)

27
Q

Obturator internus m. - blood supply

A
  • internal pudendal a.

- obturator a.

28
Q

Superior gemellus m. - origin

A

Ischial spine

29
Q

Superior gemellus m. - nerve

A

Nerve to obturator internus (L5, S1)

30
Q

Superior and Inferior gemelli m. - insertion

A

Medial surface of greater trochanter (trochanteric fossa) of femur

31
Q

Inferior gemellus m. - origin

A

Ischial tuberosity

32
Q

Inferior gemellus m. - nerve

A

Nerve to quadratus femoris (L5, S1)

33
Q

Superior gemellus m. - blood supply

A
  • internal pudendal a.

- inferior gluteal a.

34
Q

Inferior gemellus m. - blood supply

A

Medial circumflex femoral a.

35
Q

Quadratus femoris m. - origin

A

Lateral border of ischial tuberosity

36
Q

Quadratus femoris m. - insertion

A

Quadrate tubercle on intertrochanteric crest of femur and inferior area

37
Q

Quadratus femoris m. - nerve

A

Nerve to quadratus femoris (L5, S1)

38
Q

Quadratus femoris m. - blood supply

A
  • Medial circumflex femoral a.

- inferior gluteal a.

39
Q

Quadratus femoris m. - action

A
  • ER thigh

- Steadies femoral head in acetabulum

GA 2 (14 decks)

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