Week 11: Pelvis and hip Flashcards Preview

Fall 2014: Anatomy & Kinesiology > Week 11: Pelvis and hip > Flashcards

Flashcards in Week 11: Pelvis and hip Deck (74):
1

5 Bones of the pelvic girdle

1. ilium
2. ischium
3. pubis
4. sacrum
5. coccyx

2

4 bony prominances of the pelvic girdle?

1. iliac crest
2. ASIS
3. PSIS
4. SIT (ischial tuberosity)

3

Which ligament is responsible for limiting sacral and pelvic motions?

short posterior SI ligament

4

What are the main differences between men and women pelvis?

men: more stable, more weight bearing, more prone to osteophytes
women: more flexible, more prone to SI dysfunction

5

Why is the pelvic ring important?

it is the connection between the sacrum and pelvis; it helps transfer weight

6

how many joints are in the pelvic girdle?

7 joints
lumbosacral
2- sacroiliac
sacrococcygeal
symphysis pubis
2- coxofemoral

7

What is the SI joint?

transfer weight from spine to LE

8

What is nutation of the SI joint? Counter-nutation?

Nutation: anterior tilt of sacrum to ilium; PPT
Counter: posterior tilt of sacrum to ilium, APT

9

What is the open packed position of SI joint? Closed packed?

open: counter-nutation (Anterior tilt)
closed: nutation (posterior tilt)

10

What is the lumbosacral joint?

Connection between L5 and Sacral base

11

T/F with lumbar flexion, PPT always occurs?

No, at about 45* of flexion the ligaments are taut and vertebrae are stable and an APT occurs

12

APT and PPT occur in which plane?

Sagittal Plane

13

Lateral Pelvic Tilt occurs in which plane?

Frontal Plane

14

Rotation occurs in which plane?

Rotation

15

T/F: pelvic motion can be isolated?

false

16

With APT, what occurs at the pelvis, sacrum, hip, and lumbar spine?

APT
Sacral counternutatoin (posterior tilt)
Hip flexion
Lumbar extension

17

With PPT, what occurs at the pelvis, sacrum, hip, and lumbar spine

PPT
Sacral nutation (anterior tilt)
Hip extension
Lumbar flexion

18

With elevation/lateral pelvic tilt, what occurs at the hip and lumbar regions?

ipsilateral hip hikes up and adducts
ipsilateral lumbar lateral flexion

19

What depression/lateral pelvic tilt, what occurs at the hip and lumbar regions?

ipsilateral hip depression and abduction
contralateral lumbar flexion

20

With anterior pelvic rotation, what occurs at the hip and trunk?

Anterior hip swing
posterior trunk rotation towards the planted leg
Internal rotation planted hip

21

With posterior pelvic rotation, what occurs at the hip and trunk?

Posterior swing hip
Anterior trunk rotation towards planted leg
External rotation planted hip

22

What is the angle of inclination for normal hip alignment? Which plane?

125* frontal plane

23

What is the femoral anteversion for normal hip alignment? Which plane?

12-15* transverse plane

24

How many DOF does the coxofemoral joint have?

ball and socket
tri-axial (3 DOF)
concave acetabulum with convex femoral head

25

Strongest hip ligament?

Iliofemoral L. or "Y" ligament

26

Weakest hip ligament?

Ischiofemoral L.

27

3 hip ligaments

Iliofemoral L.
Pubofemoral L.
Ischiofemoral L.

28

3 closed packed position for hip motions?

Extension
ER
Abduction

29

3 Resting position for hip motion?

30* flexion
abduction
Slight ER

30

3 areas of capsular restriction for hip motion?

Flexion
Abduction
IR

31

Iliofemoral L. restricts which 2 hip motions?

Extension
ER

32

This muscle is responsible for lateral flexion of the trunk (closed chain) and lateral tilt to elevate the pelvis (open chain)

Quadratus Lumborum

33

Attachments of Quadratus Lumborum?

TP of lumbar and rib 12 to posterior aspect of iliac crest

34

4 main muscles involved in hip flexion?

iliopsoas**
Rectus femoris**
pectineus
sartorius

35

Actions of Iliopsoas?

flex thigh
ER thigh
APT

36

Innervation of Iliopsoas?

Femoral N.
Lumbar Plexus

37

Actions of Rectus Femoris?

flex thigh
APT
extend knee

38

Innervation of Rectus Femoris?

Femoral N.

39

Attachments of Rectus Femoris?

ASIS to tibial tuberosity

40

Passive insufficiency of the rectus femoris?

hip extension and knee flexion

41

Active insufficiency of the rectus femoris?

hip flexion and knee extension

42

Closed chain for hip extension? Open chain?

PPT
Hip extension

43

Closed chain for hip flexion? Open chain?

APT
hip flexion

44

2 Muscle groups involved in hip extension?

gluteus max
hamstrings (semimembranosus, semitendinosus, biceps femoris)

45

Attachments of gluteus maximus?

sacrum to femur (GT)

46

Actions of gluteus maximus?

extend thigh
ER thigh
PT and contralateral rotates

47

Innervation of gluteus max?

inferior gluteal N.

48

3 muscles that make up the hamstring group?

bicep femoris
semitendinosus
semimembranosus

49

Actions of the hamstring group?

extend thigh
PPT
flex the knee

50

Innervation of hamstring group

Sciatic N.

51

Active insufficiency of the hamstring group? Passive insufficiency?

Extend hip and flex the thigh
Flex hip and extend thigh

52

Open chain movement of hip abduction? Closed chain?

OC: hip abduction
CC: contralateral rotation; ipsilateral rotation

53

2 main muscles involved in hip abduction?

gluteus medius, gluteus minimus

54

Actions of gluteus medius and minimus

hip abduction
contralateral rotation
ipsilateral depression of pelvis

55

Innervation of the gluteus medius and minimus?

Superior gluteal N.

56

Attachments of gluteus medius and minimus?

external ilium to greater trochanter of the femur

57

Open chain movement of hip adduction? Closed chain?

OC: hip adductors
CC: ipsilateral elevation of pelvis

58

5 muscles of hip adduction

1.Adductor longus
2.Adductor brevis
3.Adductor magnus
4.Pectineus
5.Gracilis

59

2 main muscles in hip ER?

gluteus max
piriformis

60

Attachments of the Piriformis?

Sacrum to the greater trochanter of the femur

61

Actions of Piriformis?

Hip ER
Contralaterally rotates the pelvis
May Act As: IR at the thigh (if the thigh is first abducted >/ 60*)

62

Innervation of the piriformis?

Inferior Gluteal N.

63

What is a trendelenburg sign?

Weak gluteus medius

64

Muscles of hip IR

1.Tensor Fasciae Latae
2.Gluteus minimus
3.Gluteal medius (anterior)
4.Contributions (SM and ST)

65

Actions of Tensor Fasciae Latae?

Abducts the thigh
Flexes the thigh
Anterior pelvic tilt

66

Innervation of TFL?

superior gluteal N.

67

Attachment of TFL?

ASIS to IT band

68

Piriformis tightness can result in what condition?

Sciatica

69

Tight TFL can put an individual at risk for what syndrome?

ITB friction or greater trochanter bursitis

70

Increased tension at the lateral femoral condyle that causes knee pain and tension at the greater trochanter is characteristic of?

ITB friction or greater trochanter bursitis

71

What is a coxa vara position?

angle is less than 120-125*
Clinical Impact: leg length discrepancy, weakness in hip abductors, early arthritis

72

What is coxa valga position?

Angle is greater than 125-135*
Clinical Impact: instability, subluxation, dysplasia, increased femoral anteversion, increase lumbar lordosis

73

What is the normal torsion for femoral anteversion?

12-15*

74

Which ROM in the LE has a soft end feel?

hip extension with 120-140* knee flexion