Pelvis, Pelvic Girdle + Hip

Question 1

What are the functions of the pelvic girdle?

Answer 1

weight bearing in standing and sitting; gait; visceral functions of the pelvic girdle as part of the pelvis

Question 2

What does the pelvis consist of?

Answer 2

pelvic girdle + sacrum

Question 3

What does the pelvic girdle consist of?

Answer 3

2x hip bones

Question 4

What are the sacroiliac joint ligamentous support?

Answer 4

anterior sacroiliac ligament, posterior sacroiliac ligament, interosseous sacroiliac ligament, sacrospinous ligament, sacrotuberous ligament

Question 5

What is sacral nutation?

Answer 5

anterior tilt of sacrum relative to ilium

Question 6

What is counternutation?

Answer 6

opposite to sacral nutation

Question 7

What are the ligaments of the pubic symphysis?

Answer 7

superior and inferior pubic ligaments

Question 8

What is the structural and functional classification of the hip (coxal) joint?

Answer 8

synovial ball and socket, multiaxial diarthrosis

Question 9

What is the orientation of the acetabulum?

Answer 9

anterior, lateral, inferior

Question 10

What is the orientation of the lunate surface of the acetabulum?

Answer 10

anterior, superior, posterior

Question 11

What is the weight bearing and non-weight bearing surface of the acetabulum?

Answer 11

weight bearing- lunate surface; non-weight bearing- acetabular fossa

Question 12

What is coxa vara?

Answer 12

<125 degrees; exposes neck of femur to an increasing bending moment

Question 13

What is coxa valga?

Answer 13

> 125 degrees; femur is more alligned with the femur; more compressive force; normal at birth

Question 14

In what hip position is all hip joint ligaments taut?

Answer 14

extension

Question 15

What are the hip joint ligaments?

Answer 15

iliofemoral ligament (anterior), ischiofemoral ligament (posterior) and pubofemoral ligament (from superior pubic ramus)

Question 16

In what positions is the iliofemoral ligament taut?

Answer 16

extension, adduction (superior portion) and lateral rotation

Question 17

In what positions is the ischiofemoral ligament taut?

Answer 17

extension, adduction (in hip flexion) and medial rotation

Question 18

In what positions is the pubofemoral ligament taut?

Answer 18

extension, abduction

Question 19

What muscles flexes the hip joint?

Answer 19

psoas, iliacus, tensor fascia latae, sartorius, rectus femoris, adductor longus, pectineus

Question 20

What muscles extend the hip joint?

Answer 20

gluteus maximus, bicep femoris (long head), semitendinosus, semimembranosus, adductor magnus

Question 21

What muscles abduct the hip joint?

Answer 21

gluteus medius, gluteus minimus, tensor fascia latae, sartorius

Question 22

What muscles adduct the hip joint?

Answer 22

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

Question 23

What muscles laterally rotate the hip joint?

Answer 23

piriformis, obturator internus, superior gemellus, inferior gemellus, obturator externus, gluteus maximus (posterior gluteus medius in hip E) (biceps femoris, sartorius)

Question 24

What muscles medially rotate the hip joint?

Answer 24

no dedicated hip medial rotators. in hip F- all gluteus med and min, piriformis; in hip E- anterior gluteus med and min, semimembranosus, semitendinosus