Gluteal region

Question 1

gluteal muscles: and action

Answer 1

• gluteus maximus (extend, laterally rotate thigh)
• gluteus medius (abducts thigh)
• gluteus minimus (abducts thigh)

Question 2

list lateral rotators of thigh:

Answer 2

Inf gemellus
Quadratus femoris

Obturator externus
Obturator internus
Piriformis
Superior gemellus

Question 3

gluteus maximus: location

Answer 3

posterior superficial

Question 4

gluteus maximus: origin

Answer 4

ext surface of illium post to post gluteal line

• fascia of erector spinae, sacrum and coccyx
• sacrotuberous lig

Question 5

gluteus maximus: insertion

Answer 5

• iliotibial tract

- gluteal tuberosity of femur

Question 6

gluteus maximus: innervation

Answer 6

inferior gluteal n

Question 7

gluteus maximus: action

Answer 7

• extension
• lateral rotation
• abduction of thigh at the hip joint
• stabilises hip joint

Question 8

gluteus medius: location

Answer 8

deep to glute max

Question 9

gluteus medius: origin

Answer 9

ext surface of ilium btw anterior and posterior gluteal lines

Question 10

gluteus medius: insertion

Answer 10

lateral surface of greater trochanter

Question 11

gluteus medius: innervation

Answer 11

superior gluteal n

Question 12

gluteus medius: action

Answer 12

• abduction
• medial rotation of thigh at hip j
• prevents pelvic drop during walking

Question 13

gluteus minimus: location

Answer 13

deep to glute max

Question 14

gluteus minimus: origin

Answer 14

external surface of ilium btw inferior/ anterior gluteal lines

Question 15

gluteus minimus: insertion

Answer 15

anterolateral aspect of greater trochanter

Question 16

gluteus minimus: innervation

Answer 16

superior gluteal

Question 17

gluteus minimus: action

Answer 17

• abduction
• medial rotation of thigh at hip j
• prevents pelvic drop during walking

Question 18

piriformis: location

Answer 18

deep to glute max

Question 19

piriformis: origin

Answer 19

anterior surface of sacrum

Question 20

piriformis: insertion

Answer 20

superior border of greater trochanter

Question 21

piriformis: innervation

Answer 21

branches:

• L5
• S1
• S2

Question 22

piriformis: action

Answer 22

lateral rotation of extended (?)

- abduction of flexed thigh at hip joint

Question 23

obturator internus: location

Answer 23

posterior

Question 24

obturator internus: origin

Answer 24

obturator membrane, and surrounding bone

Question 25

obturator internus: insertion

Answer 25

medial surface of greater trochanter

Question 26

obturator internus: innervation

Answer 26

nerve to obturator internus

Question 27

obturator internus: action

Answer 27

• lateral rotation of the extended

- abduction of flexed thigh and hip joint

Question 28

gemellus superior: location

Answer 28

superior to ob internus

Question 29

gemellus superior: origin

Answer 29

ischial spine

Question 30

gemellus superior: insertion

Answer 30

medial surface of greater trochanter

Question 31

gemellus superior: innervation

Answer 31

nerve to ob. internus

Question 32

gemellus superior: action

Answer 32

• lateral rotation of the extended

- abduction of flexed thigh at hip joint

Question 33

gemellus inferior: location

Answer 33

inferior to ob. internus

Question 34

gemellus inferior: origin

Answer 34

superio aspect of ischial tuberosity

Question 35

gemellus inferior: insertion

Answer 35

medial surface of greater trochanter

Question 36

gemellus inferior: innervation

Answer 36

nerve to quadratus femoris

Question 37

gemellus inferior: action

Answer 37

• lateral rotation of extended,

- abduction o flexed thigh at hip joint

Question 38

quadratus femoris: location

Answer 38

post, inferior

Question 39

quadratus femoris: origin

Answer 39

lateral aspect of ischial tuberosity

Question 40

quadratus femoris: insertion

Answer 40

quadrate tubercle on intertrochanteric crest

Question 41

quadratus femoris: innervation

Answer 41

nerve to quadratus femoris

Question 42

quadratus femoris: action

Answer 42

lateral rotation of thigh at hip joint

Question 43

obturator externus: location

Answer 43

deep, posterior

Question 44

obturator externus: origin

Answer 44

obturator membrane and surrounding bone

Question 45

obturator externus: insertion

Answer 45

trochanteric fossa

Question 46

obturator externus: innervation

Answer 46

obturator n

Question 47

obturator externus: action

Answer 47

lateral rotation of thigh at hip joint