Manual 114-118: Muscles of Iliac and Gluteal Region Flashcards Preview

Anatomy Lower Limb > Manual 114-118: Muscles of Iliac and Gluteal Region > Flashcards

Flashcards in Manual 114-118: Muscles of Iliac and Gluteal Region Deck (60):
1

origin psoas major

- transverse process lumbar vertebrae
- intervertebral discs last thoracic/all lumbar vertebrae
- tendinous arches

2

insertion psoas major

- lesser trochanter femur medial to iliacus
- bursa separates tendon from pubis and hip joint capsule

3

n psoas major

L2/3

4

function psoas major

flex hip and lumbar spine

5

where is psoas minor located?

anterior to psoas major

6

origin psoas minor

T12/L1 vertebrae and intervertebral disc

7

insertion psoas minor

iliopectineal eminence
iliac fascia

8

n psoas minor

L1

9

function psoas minor

flex lumbar spine

10

origin iliacus

- upper 2/3 iliac fossa
- iliac crest to ASIS/AIIS
- superolateral ala
- sacroiliac lig
- iliolumbar lig

11

insertion iliacus

base lesser trochanter femur

12

n iliacus

femoral

13

function iliacus

flex hip

14

sometimes there is an iliacus minor (detached portion iliacus)- where does it attach?

0: ASIS
I: intertrochanteric line femur or iliofemoral ligament

15

vertical fibers b/w iliac crest and superior gluteus maximus

gluteal aponeurosis

16

origin gluteus maximus

- posterior gluteal line on ilium
- posterior surface of coccyx
- aponeurosis sacrospinalis m
- sacrotuberous lig
- gluteal aponeurosis (covering m body)

17

insertion gluteus maximus

- IT band (proximal/superficial fibers)
- gluteal tuberosity (deep fibers)

18

3 bursae on deep surface of gluteus maximus

- greater trochanter (largest)
- ischial tuberosity (most commonly missing)
- b/w tendon gluteus maximus and vastus lateralis

19

n gluteus maximus

inferior gluteal n

20

function gluteus maximus

extend thigh
lateral rotate
abduct thigh

21

origin gluteus medius

- outer ilium b/w iliac crest adn posteriro gluteal line posteriorly
- anterior gluteal line anteriorly

22

insertion gluteus medius

oblique bony ridge greater trochanter (laterally)

23

n gluteus medius

superior gluteal n

24

function gluteus medius

- abduct thigh
- medially rotate an extended hip
- anterior fibers: flex/medial rotate hip
- posterior fibers: lateral rotate hip
***stabilizes the pelvis in movement

25

what structures are b/w gluteus medius and minimus?

superior gluteal n and deep superior gluteal vessels

26

origin gluteus minimus

- outer ilium b/w anterior and inferior gluteal line
- greater sciatic notch

27

insertion gluteus minimus

- anterior greater trochanter (there is a bursa b/w tendon and greater trochanter)

28

n gluteus minimus

superior gluteal n

29

function gluteus minimus

- abduct hip
- medially rotate extended hip
- weak hip flexor
*** stabilizes pelvis during motion

30

origin tensor fascia latae

anterior iliac crest near ASIS

31

insertion tensor fascia latae

IT tract just distal to level of greater trochanter
- the IT attaches to the inferior lateral tibial condyle and forms part of knee capsule

32

n tensor fascia latae

superior gluteal n

33

function tensor fascia latae

- medially rotate hip
- hip flexor

34

insertion piriformis

- superior greater trochanter posterior to obturator internus/gemelli

35

n piriformis

S2 or S1/2

36

function piriformis

- lateral rotator
- abductor of flexed hip
- assist hip extension

37

origin obturator internus

- superior/inferior pubic rami
- ischial ramus
- ilial/ischial wall of true pelvis
- obturator membrane

38

where are the two bursa associated with obturator internus?

- through lesser sciatic foramen, right angle over bone b/w spine/tuberosity of ischium
- b/w hip joint capsule and tendon

39

insertion obturator internus

medial greater trochanter anterior to trochanteric fossa

40

n obturator internus

n to obturator internus (L5-S1/2)

41

function obturator internus

- lateral rotator
- abductor of flexed hip
- hip extension

42

origin superior gemellus

outer surface ischial spine
partial fusion to obterator internus tendon

43

insertion superior gemellus

medial greater trochanter

44

n superior gemellus

n to obturator internus

45

function superior gemellus

lateral rotator of hip

46

larger of two gemelli

inferior gemellus

47

origin inferior gemellus

superomedial ischial tuberosity
partial fusion to obturator internus tendon

48

insertion inferior gemellus

medial greater trochanter

49

n inferior gemellus

n to quadratus femoris

50

function inferior gemellus

lateral rotator hip

51

quadratus femoris is located b/w what two muscles

inferior gemellus and adductor magnus

52

origin quadratus femoris

lateral edge ischial tuberosity

53

insertion quadratus femoris

quadrate tubercle femur

54

n quadratus femoris

n to quadratus femoris (L4-S1)

55

function quadratus femoris

lateral rotator of hip
adduct hip

56

m covering outer surface anterior pelvic wall

obturator externus

57

origin obturator externus

ischium/pubis surrounding medial margin obturator foramen/membrane

58

insertion obturator externus

trochnateric fossa femur

59

n obturator externus

posterior division obturator n

60

function obturator externus

lateral rotator hip
adduct hip