gluteal region muscles

Question 1

gluteus maximus proximal attachment

Answer 1

ilium posterior to posterior gluteal line
dorsal surface of sacrum and coccyx
sacrotuberous ligament

Question 2

gluteus maximus distal attachment

Answer 2

iliotibial tract (which inserts into lateral condyle of tibia)
some insertion on gluteal tuberosity

Question 3

gluteus maximus innervation

Answer 3

L5-S2

Question 4

gluteus maximus action

Answer 4

thigh extension
lateral rotation
steadies thigh, assists in rising from sitting position

Question 5

gluteus medius proximal attachment

Answer 5

external surface of ilium between anterior and posterior gluteal lines

Question 6

gluteus medius distal attachment

Answer 6

lateral surface of greater trochanter of femur

Question 7

gluteus medius innervation

Answer 7

L5-S1 (superior gluteal nerve)

Question 8

action of gluteus medius, gluteus minimus, and tensor fasciae latae

Answer 8

abduction of thigh
medial rotation of thigh
keep pelvis level when ipsilateral limb is weight-bearing
advance opposite limb during swing phase

Question 9

gluteus minimus proximal attachment

Answer 9

external surface of ilium between anterior and inferior gluteal lines

Question 10

gluteus minimus distal attachment

Answer 10

anterior surface of greater trochanter of femur

Question 11

gluteus minimus innervation

Answer 11

L5-S1 (superior gluteal nerve)

Question 12

tensor fasciae latae proximal attachment

Answer 12

ASIS

anterior part of iliac crest

Question 13

tensor fasciae latae distal attachment

Answer 13

iliotibial tract, which attaches to lateral condyle of tibia

Question 14

tensor fasciae latae innervation

Answer 14

L5-S1 (superior gluteal nerve)

Question 15

piriformis proximal attachment

Answer 15

anterior surface of sacrum

sacrotuberous ligament

Question 16

piriformis distal attachment

Answer 16

superior border of greater trochanter of femur

Question 17

piriformis innervation

Answer 17

branches of anterior rami of S1-S2

Question 18

action of piriformis, obturator internus, and superior and inferior gamelli

Answer 18

lateral rotation of extended thigh
abduction of flexed thigh
steadying of femoral head in acetabulum

Question 19

obturator internus proximal attachment

Answer 19

pelvic surface of obturator membrane and surrounding bone

Question 20

obturator internus distal attachment

Answer 20

medial surface of greater trochanter (trochanteric fossa) of femur

Question 21

triceps coxae

Answer 21

superior gemellus, obturator internus, and inferior gemellus