Hip joint

Question 1

3 bones which form the hip bone?

Answer 1

ilium, ischium and pubis

Question 2

which bones join to form the hip joint?

Answer 2

femoral head articulates with acetabulum of hip

Question 3

where do the 2 hemi-pelvises articulate?

Answer 3

pubic symphysis

Question 4

type of joint?

Answer 4

ball and socket synovial

Question 5

why is hip joint more stable than shoulder joint?

Answer 5

socket is deeper and ligaments + muscles much bigger and stronger

Question 6

what is the acetabular labrum?

Answer 6

fibrocartilaginous collar of acetabulum cavity

Question 7

name the 3 ligaments of the hip joint?

Answer 7

ilifemoral, ischiofemoral, pubofemoral

Question 8

function of iliofemoral ligament?

Answer 8

prevents hyperextension of hip joint

Question 9

function of pubofemoral ligament?

Answer 9

prevents hyperabduction of hip joint

Question 10

name the 7 movements of the hip joint?

Answer 10

flexion, extension, int. rotation, ext. rotation, circumduction, abduction and adduction

Question 11

what is circumduction?

Answer 11

combo of the other 6 movements

Question 12

name the 3 muscles involved in flexion?

Answer 12

iliacus, psoas major, pectineus

Question 13

once the iliacus and psoas major muscles attach onto the greater trochanter, what are they known as?

Answer 13

the iliopsoas muscle

Question 14

where does the iliacus and psoas major m.s arise?

Answer 14

inner pelvis and post. abdo wall

Question 15

where does the pectineus m. arise?

Answer 15

pubis bone

Question 16

which nerve supplies the 3 flexors of the hip?

Answer 16

branches of lumbar plexus

Question 17

name the 3 functional extensors of the hip?

Answer 17

gluteus maximus, hamstrings and posterior part of the adductor magnus

Question 18

of the 3 extensors which is the main?

Answer 18

gluteus maximus

Question 19

which nerve innervates the extensors of the hip?

Answer 19

sacral plexus

Question 20

what is the sacral plexus roots?

Answer 20

L4-S3

Question 21

where are the adductors of the hip found?

Answer 21

medial compartment of thigh

Question 22

innervation of adductors?

Answer 22

obturator nerve

Question 23

origin of obturator nerve and where is passes through?

Answer 23

nerve from lumbar plexus, exits pelvis via obturator canal

Question 24

which 3 muscles carry out abduction of hip?

Answer 24

deep gluteal muscles - gluteus medius, gluteus minimus and piriformis

Question 25

innervation of abductor compartment?

Answer 25

lumbosacral plexus

Question 26

name the 5 muscles involved in external rotation of the hip?

Answer 26

piriformis, obturator internus and externus, superior and inferior gamelli, quadratus femoris

Question 27

name the 5 muscles involved in internal rotation of the hip?

Answer 27

gluteus medius, gluteus minimus, tensor fascia lata