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Flashcards in Pelvis Deck (53):
1

Anterior tilting

changes in degree of lumbar lordosis

2

Lateral tilting

changes in degree of hip abduction

3

Ischiofemoral Ligament

reinforces fibrous capsule posteriorly from ischial portion of acetabular rim to base of greater trochanter
-resists hyperextension

4

The lumbar plexus lies between:

-psoas major and quadratus lumborum, in psoas compartment

5

Iliacus origin

Upper 2/3 of iliac fossa of ilium, internal lip of iliac crest, lateral aspect of sacrum, ventral sacroiliac ligament, and lower portion of iliolumbar ligament

6

Iliacus insertion

lesser trochanter

7

Iliacus action

flex the torso and thigh with respect to each other
also external rotation

8

Iliacus innervation

muscular branch of femoral nerve

9

Psoas major and minor origin

Anterior surfaces and lower borders of transverse processes of L1 - L5 and bodies and discs of T12 - L5

10

Psoas major and minor insertion

lesser trochanter

11

Psoas major and minor action

flex the torso and thigh with respect to each other
also external rotation

12

Psoas major and minor innervation

direct fibers of L1-L3 lumbar plexus

13

Quadratus Lumborum origin

iliac crest posterior inner lip

14

Quadratus Lumborum insertinon

upper 4 lumbar vertebrae transverse processes, 12th rib lower border

15

Quadratus Lumborum action

lateral flexion (right performs right, left performs left)

16

Quadratus Lumborum innervation

ventral rami of 12th throacic and upper three or four lumbar spinal nerve

17

Gluteus max origin

Posterior aspect of dorsal ilium posterior to posterior gluteal line, posterior superior iliac crest, posterior inferior aspect of sacrum and coccyx, and sacrotuberous ligament

18

Gluteus max insertion

Primarily in fascia lata at the iliotibial band; also into the gluteal tuberosity on posterior femoral surface

19

Gluteus max action

Major extensor of hip joint, assists in laterally rotating the thigh; upper and middle third section of the muscle are abductors

20

Gluteus max innervation

inferior gluteal nerve

21

Gluteus med origin

dorsal ilium inferior to iliac crest

22

Gluteus med insertion

lateral and superior surfaces of greater trochanter

23

Gluteus med action

Major abductor of thigh; anterior fibers help to rotate hip medially; posterior fibers help to rotate hip laterally

24

Gluteus med innervation

superior gluteal nerve

25

Gluteus min. origin

Dorsal ilium between inferior and anterior gluteal lines; also from edge of greater sciatic notch

26

Gluteus min insertion

anterior surface of greater trochanter

27

Gluteus min action

abducts and medially rotates the hip joint

28

Gluteus min innveration

superior gluteal nerve

29

Piriformis origin

Anterior surface of lateral process of sacrum and gluteal surface of ilium at the margin of the greater sciatic notch

30

Piriformis insertion

superior border of greater trochanter

31

Piriformis action

Lateral rotator of the hip joint; also helps abduct the hip if it is flexed

32

Piriformis innervation

piriformis nerve

33

Superior Gemellus origin

ischial spine

34

Superior Gemellus insertion

medial surface of greater trochanter of femur, in common with obturator internus

35

Superior Gemellus action

rotates the thigh laterally, also helps abduct the flexed thigh

36

Superior Gemellus innervation

nerve to the obturator internus and superior gemellus

37

Inferior gemellus origin

Posterior portions of ischial tuberosity and lateral obturator ring

38

Inferior gemellus insertion

Medial surface of greater trochanter of femur, in common with obturator internus

39

Inferior gemellus action

Rotates the thigh laterally; also helps abduct the flexed thigh

40

Inferior gemellus innervation

Nerve to the obturator internus and inferior gemellus -- a branch of the sacral plexus (L5, S1)

41

Obturator Internus origin

Internal surface of obturator membrane and posterior bony margins of obturator foramen

42

Obturator Internus insertion

Medial surface of greater trochanter of femur, in common with superior and inferior gemelli

43

Obturator internus action

Rotates the thigh laterally; also helps abduct the thigh when it is flexed

44

Obturator internus innervation

Nerve to the obturator internus and superior gemellus -- a branch of the sacral plexus (L5, S1)

45

Quadratus Femoris origin

lateral margin of obturator ring above ischial tuberosity

46

Quadratus Femoris insertion

Quadrate tubercle and adjacent bone of intertrochanteric crest of proximal posterior femur

47

Quadratus femoris action

rotates the hip laterally; also helps adduct the hip

48

Quadratus femoris innervation

Quadratus femoris branch of nerve to the quadratus femoris and inferior gemellus (L5, S1)

49

Obturator externus origin

External surface of obturator membrane and anterior bony margins of obturator foramen

50

Obturator externus insertion

Posteromedial surface of greater trochanter of femur

51

Obturator externus action

Rotates the thigh laterally; also helps adduct thigh

52

Obturator externus innervation

obturator

53

Femoral triangle

SAIL
s=sartorius
a=adductor longus
il=inguinal ligament
NAVEL
n=nerve
a=artery
v=vein
e=empty space
l=lymph nodes