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MSK III > Gluteal and Posterior femoral regions > Flashcards

Gluteal and Posterior femoral regions Flashcards

1
Q

What are the prime movements from mm in gluteal region

A

ABduction and lateral rotation. As synergists they assist in extension and flexion

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2
Q

How many layers are in the posterior femoral compartment

A

one

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3
Q

What are the general functions of mm in the posterior femoral compartment

A

extend thigh and flex leg

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4
Q

origin and insertion of gluteus maximus

A

origin: between posterior crest of ilium and posterior gluteal line and sacrotuberous ligament
insertion: gluteal tuberosity of femur and IT tract

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5
Q

action of gluteus maximus

A

extension, lateral rotation

when working with IT band it helps to stabilize the knee

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6
Q

what inn gluteus maximus

A

inferior gluteal n

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7
Q

origin and insertion of gluteus medius

A

origin: ilium between posterior and anterior gluteal lines
insertion: greater trochanter of femur

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8
Q

what is the action of gluteus medius

A

ABduct thigh
posterior fibers w/maximus laterally rotate thigh
anterior fibers w/minimus medially rotate thigh

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9
Q

When the L limb is unsupported what m levels the sacral base

A

R gluteus medius with help from minimus

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10
Q

what inn gluteus medius

A

superior gluteal n

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11
Q

origin and insertion of gluteus minimus

A

origin: ilium between anterior and inferior gluteal lines.
insertion: greater trochanter of femur- anterior side

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12
Q

what is the action of gluteus minimus

A

Abduction and medial rotate of thigh

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13
Q

what inn gluteus minimus

A

superior gluteal n

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14
Q

origin and insertion of tensor fascia latae

A

origin: anterior outer portion of iliac crest next to ASIS
insertion: IT tract to lateral tibial condyle

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15
Q

what is the action of tensor fascia latae

A

ABducts, flexes and medially rotates thigh

can maintain knee in extended position

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16
Q

what inn tensor fascia latae

A

superior gluteal n

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17
Q

What mm are in the deep gluteal region

A

piriformis, gemellus superior, obturator internus, gemellus inferior, quadratus femoris

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18
Q

origin and insertion piriformis

A

origin: anterior surface of sacrum, lateral to anterior sacral foramina
insertion: greater trochanter of femur

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19
Q

action of piriformis

A

ABduction of thigh, lateral rotation of thigh

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20
Q

what inn piriformis

A

n to piriformis

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21
Q

origin and insertion of gemellus superior

A

origin: ischial spine
insertion: tendon of obturator internus

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22
Q

action of gemellus superior

A

lateral rotation of thigh

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23
Q

what inn gemellus superior

A

n to obturator internus

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24
Q

origin and insertion of obturator internus

A

origin: internal surface of the obturator membrane and margins of the obturator foramen
insertion: greater trochanter

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25
Q

action of obturator internus

A

lateral rotation and some abduction of thigh

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26
Q

what inn obturator internus

A

n to obturator internus

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27
Q

origin and insertion of gemellus inferior

A

origin: ischial tuberosity near margin of lesser sciatic notch
insertion: tendon of obturator internus

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28
Q

action of gemellus inferior

A

lateral rotation of thigh

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29
Q

inn to gemellus inferior

A

n to quadratus femoris

30
Q

origin and insertion of quadrates femoris

A

origin: ischial tuberosity
insertion: midway between trochanters on posterior femur

31
Q

action of quadratus femoris

A

lateral rotation of thigh

32
Q

inn quadratus femoris

A

n to quadratus femoris

33
Q

What are the mm of the posterior femoral compartment

A

biceps femoris, semimembranosus, semitendinosus

34
Q

origin and insertion of biceps femoris

A

origin: long head- ischial tuberosity
short head- middle third lateral lip linea aspera of femur
insertion: lateral condyle of tibia, head of fibula

35
Q

action of biceps femoris

A

long head- extends thigh, flexes knee

short head flexes the leg

36
Q

inn to biceps femoris

A

long head- tibial component of sciatic

short head- common fibular n

37
Q

origin and insertion of semimembranosus

A

origin: ischial tuberosity
insertion: posterior surface, medial condyle

38
Q

action of semimembranosus

A

extends thigh, flexes leg and medially rotates leg when knee is flexed

39
Q

inn of semimembranosus

A

tibial component of sciatic n

40
Q

origin and insertion of semitendinosus

A

origin: ischial tuberosity
insertion: medial anterior surface of tibia below condyle

41
Q

action of semitendinosus

A

extends thigh, flexes and medially rotates leg when knee is flexed

42
Q

inn of semitendinosus

A

tibial component of sciatic

43
Q

what mm make up pes anserinus

A

sartorius, gracilis and semitendinosus

44
Q

what actions do the mm of pes anserinus take up

A

flex and medial rotate knee when flexed

45
Q

what foramen does the superior gluteal a come through

A

greater sciatic, superior to piriformis

46
Q

what foramen does the inferior gluteal a come from

A

greater sciatic inferior to piriformis

47
Q

what are the branches of the superior gluteal a and what do they supply

A

superficial to gluteus maximus
deep to superior and inferior branches
superior goes to tensor fascia lata
inferior goes to trochanteric fossa

48
Q

what are the branches of inferior gluteal a

A

muscular, anastomotic branch to cruciate anastomosis, branch to sciatic n, coccygeal and cutaneous

49
Q

what branch of inferior gluteal a pierces sacrotuberous ligament

50
Q

what supplies the posterior femoral compartment

A

profunda femoral a and v

51
Q

What nn innervate gluteal and posterior thigh

A

ventral rami of spinal nn L4L5S1S2S3

52
Q

What levels are in the superior gluteal n

53
Q

where does the superior gluteal n course

A

between gluteus medius and minimus

54
Q

what does the superior gluteal n innervate

A

gluteus medius, minimus and tensor fascia lata

55
Q

where does inferior gluteal n course

A

into gluteus maximus

56
Q

what levels are in inferior gluteal n

57
Q

What levels are in the tibial part of sciatic n

A

anterior divisions of ventral rami L4 L5 S1 S2 S3

58
Q

what levels are in the common fibular part of sciatic n

A

psterior divisions of central rami L4 L5 S1 S2 S3

59
Q

where does the sciatic n course

A

exit pelvis through greater sciatic foramen, passing anterior through substance of piriformis
superficial to deep lateral rotators of the thigh and deep to gluetus maximus

60
Q

what branch of inferior gluteal a pierces sacrotuberous ligament

61
Q

what supplies the posterior femoral compartment

A

profunda femoral a and v

62
Q

What nn innervate gluteal and posterior thigh

A

ventral rami of spinal nn L4L5S1S2S3

63
Q

What levels are in the superior gluteal n

64
Q

where does the superior gluteal n course

A

between gluteus medius and minimus

65
Q

what does the superior gluteal n innervate

A

gluteus medius, minimus and tensor fascia lata

66
Q

where does inferior gluteal n course

A

into gluteus maximus

67
Q

what levels are in inferior gluteal n

68
Q

What levels are in the tibial part of sciatic n

A

anterior divisions of ventral rami L4 L5 S1 S2 S3

69
Q

what levels are in the common fibular part of sciatic n

A

psterior divisions of central rami L4 L5 S1 S2 S3

70
Q

what does the tibial part of sciatic inn

A

semimebranosus, semitendinosus, long head biceps femurs and part of adductor magnus

71
Q

what does the common fibular n inn

A

short head of biceps femurs m

MSK III (9 decks)

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