Pelvis and Hip Joint Flashcards Preview

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Flashcards in Pelvis and Hip Joint Deck (50):
1

What are the three joints in the pelvic girdle?

Left and right sacroiliac joints and pubic symphysis joint

2

What is the area called where the ischium, ilium and pubic parts of the innominate bone fuse?

Acetabulum, 'the socket'

3

What is the hip joint between?

Head of femur and acetabulum of innominate bone

4

What are the three bones in the pelvic girdle?

Left and right innominate bones and sacrum

5

What are the two pelvic ligaments that form greater and lesser sciatic foramen?

Sacrotuberous ligament
Sacrospinous ligament

6

What are the possible movements at the hip joint?

Flexion/extension
Abduction/adduction
Medial/lateral rotation

7

What are the three main features that enhance stability of hip joint?

Anatomy of acetabulum
Fibrous capsule
Ligaments

8

Why does the anatomy of the acetabulum enhance stability of hip joint?

Smooth and crescent shaped articular surface
Acetabular labrum - fibrocartilaginous collar that increases depth

9

What bridges the acetabular notch?

Transverse acetabular ligament

10

What are the attachments of the fibrous capsule?

Proximally - rim of acetabulum
Distally - femoral neck

11

What are the three ligaments that stabilise the hip joint called?

Iliofemoral, pubofemoral and ischiofemoral

12

Which ligament covers the joint superiorly and anteriorly?

Iliofemoral

13

Which ligament covers the joint inferiorly and anteriorly?

Pubofemoral

14

Which ligament covers the joint posteriorly?

Ischiofemoral

15

What is common function of the hip joint ligaments?

Prevent excessive extension

16

Which direction would the force come from to posteriorly dislocate the hip?

Anterior force on flexed knee

17

Which direction would the force come from to anteriorly dislocate the hip?

Force during extreme abduction

18

Which direction would the force come from to medially dislocate the hip?

Superior force through femur

19

What are the attachments of gluteus maximus?

Origin - gluteal surface of ilium, sacrum and coccyx
Insertion - iliotibial tract and gluteal tuberosity of femur

20

What are the actions of gluteus maximus?

Extension of thigh, also assists in lateral rotation

21

What nerve supplies gluteus maximus?

Inferior gluteal nerve

22

What are the attachments of gluteus medius?

Origin - gluteal surface of ilium
Insertion - lateral surface of greater trochanter

23

What are the attachments of gluteus minimis?

Origin - ilium
Insertion - anterior side of greater trochanter

24

What are the actions of gluteus medius and minimis?

Abduction and medial rotation of thigh, prevents pelvic drop of other limb

25

What nerve supplies gluteus medius and minimis?

Superior gluteal nerve

26

What is the iliotibial tract?

Fibrous reinforcement of fascia lata (deep fascia of thigh)

27

What are the attachments of piriformis muscle?

Origin - anterior sacrum, gluteal spine, superior margin of greater sciatic notch
Insertion - greater trochanter

28

What are the actions of piriformis?

Lateral rotation and abduction

29

What nerve supplies piriformis?

Nerve to piriformis

30

Which nerves and vessels pass through greater sciatic foramen superior to piriformis?

Superior gluteal vessels
Superior gluteal nerve

31

Which nerves and vessels pass through greater sciatic foramen inferior to piriformis?

Inferior gluteal vessels
Inferior gluteal nerve
Inferior pudendal vessels
Pudendal nerve
Sciatic nerve
Posterior femoral cutaneous nerve
Nerve to obturator internus
Nerve to quadratus femoris

32

Which structures pass through lesser sciatic foramen?

Tendon of obturator internus
Internal pudendal vessels
Pudendal nerve
Nerve to obturator internus

33

What are the attachments of obturator internus muscle?

Origin - pubis and ischium at obturator foramen
Insertion - greater trochanter of femur

34

What are the actions of obturator internus?

Lateral rotation and abduction at the hip

35

What nerve supplies obturator internus?

Nerve to obturator internus

36

What are the attachments of superior gemellus?

Origin - ischial spine
Insertion - greater trochanter

37

What nerve supplies superior gemellus?

Nerve to obturator internus

38

What are the attachments of inferior gemellus?

Origin - ischial tuberosity
Insertion - greater trochanter

39

What are the actions of the gemelli muscles?

Lateral rotation and abduction at hip

40

What nerve supplies inferior gemellus?

Nerve to quadratus femoris

41

What are the attachments of quadratus femoris?

Origin - lateral side of ischial tuberosity
Insertion - quadrate tuberosity on intertrochanteric crest

42

What is the action of quadratus femoris?

Lateral rotation of hip

43

What nerve supplies quadratus femoris?

Nerve to quadratus femoris

44

Which muscles insert into greater trochanter of femur?

Gluteus medius and minimis, piriformis, obturator internus, gemelli

45

Which muscles are responsible for flexion of the hip?

Adductor part of adductor magnus, sartorius, pectineus, iliopsoas, rectus femoris

46

Which muscles are responsible for extension of the hip?

Gluteus maximus, semimembranosus, semitendinosus, long head of biceps femoris, hamstring part of adductor magnus

47

Which muscles are responsible for abduction of the hip?

Gluteus medius, gluteus minimus, piriformis, obturator internus, gemelli, sartorius

48

Which muscles are responsible for adduction of the hip?

Adductor magnus, pectineus, adductor longus, adductor brevis, gracilis

49

Which muscles are responsible for medial rotation of the hip?

Gluteus medius and minimis, semimembranosus, semitendinosus, adductor longus

50

Which muscles are responsible for lateral rotation of the hip?

Gluteus maximus, piriformis, obturator internus, gemelli, quadratus femoris, biceps femoris, sartorius, iliopsoas, obturator externus