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MSK II > GA 3 gluteal region > Flashcards

GA 3 gluteal region Flashcards

1
Q

Superior and inferior boundaries of gluteal region

A

Iliac crest

gluteal sulcus (groove beneath gluteal fold)

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2
Q

What comes out and goes into the Greater sciatic foramen

A

(ALL EXIT)

  • Gluteal neurovascular bundle
  • Piriformis m.
  • sciatic nerve
  • posterior femoral cutaneous
  • Pudendal n. and internal pudendal a.
  • Nerve to the obturator internus/superior gemellus
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3
Q

What comes out and goes into lesser sciatic foramen?

A
  • Pudendal n. and internal pudendal a. (enter)
  • Obturator internus/superior gemellus n. (enter)
  • Obturator internus (exit)
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4
Q

Which ligaments create the greater sciatic notch and foramen?

the lesser sciatic notch and foramen?

A
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5
Q

What are the cutaneous nerves of the gluteal region?

A

cluneal nerves

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6
Q

Superior cluneal nerves nerve roots?

A

L1-L3 dorsal rami

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7
Q

Middle cluneal nerve roots?

A

S1-S3 dorsal Rami

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8
Q

INferior cluneal nerve roots?

A

S1-S3 ventral rami

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9
Q

What do the different cutaneous nerves of the gluteal region innervate?

A
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10
Q

What are the nerve roots for Superior gluteal n?

the inferior gluteal n.?

A

S- L4-S1

I- L5-S2

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11
Q

What are the nerve roots for the sciatic n. and its branches?

A
  • Sciatic- L4-S3
    • Tibial branch L4-S3
    • Common fibular branch L4-S2
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12
Q

Where does the superior gluteal n. and inferior gluteal n. leave pelvis?

what do they run in between?

What do they supply?

A
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13
Q

Where does the sciatic leave the pelvis?

What does it run in between?

What does it not innervate?

A
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14
Q

What supplies more skin than any other cutaneous nerve?

A

Posterior femoral cutaneous nerve

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15
Q

What innervates the small lateral rotators?

A
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16
Q

Where does obturator internus/superior gemellus n. travel?

A
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17
Q

Pudendal nerve travels where?

A

Under piriformis

over obturator internus

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18
Q

What arteries branch from the internal iliac a?

A
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19
Q

What does this artery come from?

what does it supply?

A

Superior Gluteal artery

Largest internal iliac artery branch

  • Superficial branch
    • gluteus maximus
  • Deep branch
    • gluteus medius
    • gluteus minimus
    • tensor fascia lata
20
Q

What does this artery come from?

What does it supply?

A

Comes from internal iliac a.

21
Q

What allows for supply of muscles of leg if femoral artery is occluded?

A
22
Q

the artery that is part of the PIN structures

travels where?

supplies what?

A
23
Q
A
24
Q

If you were to give an injection in the gluteal region where would you inject?

A
25
Q

Superficial gluteal mesuclature

A
26
Q

Gluteus maximus

A

O: posterior gluteal line

I: IT band and gluteal tuberosity femur

A: Slight extension of leg (w/tensor fascia lata)

N: inferior gluteal n.

27
Q

Green dots

A
28
Q

Gluteus medius

gluteus minimus

A

O: picture

I: picture

A: thigh abduction

medial rotation (minimus especially)

N: superior gluteal n.

29
Q

Gait cycle in humans and muscles that unexpectedly help.

A
  • Medius and minimus prevent dropping during stance phase. relax during swing phase
  • in apes due to ilac not being on sides so attachment is on back not on sides
  • can cause wadling or falling forward walking bipedally without proper muscle placement
30
Q

Duchennes Limp

or

trendelenburg’s sign

A

injury to superior gluteal nerve

(can also be injury to muscle)

  • loses steadying action of medius and minimus
  • lean toward affected side during stance phase
    • due to drop to opposite side
31
Q

Tensor Fascia Lata

A

enclosed by fascia lata

A: abducts, medially rotates, and flexes thigh

SLight extension of knee along with the gluteus maximus

N: superior gluteal n.

32
Q

feature of the IT band

A
33
Q

Piriformis

A
34
Q

Whats above piriformis? whats below it?

A
35
Q

What can go through the piriformis?

A
36
Q

Obturator internus

A
37
Q

Obturator internus m. action?

A

It functions to help laterally rotate femur with hip extension

abduct femur with hip flexion

steady the femoral head in the acetabulum.

38
Q

Superior and inferior gemelli

A
39
Q

what is the triceps coxae?

A

Superior and inferior gemelli and obtorator interus m

40
Q

What is the action of the gemelli?

A

to laterally rotate the extended thigh and abduct the flexed thigh at the hip

41
Q

obturator externus

A
42
Q

Quadratus femoris

A

A: external rotation and adduction of hip joint

43
Q

Vertically oriented vs horizontally oriented

A
44
Q

relevant bursa

Which one is very likely inflamed in activity?

A
45
Q
A

MSK II (20 decks)

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