Gluteal Muscles

Question 1

Gluteus Maximus insertion

Answer 1

Upper fibers: iliotibial tract

Lower fibers: gluteal tuberosity

Question 2

Gluteus Maximus innervation

Answer 2

Inferior gluteal n (L5-S2)

Question 3

Gluteus Maximus action

Answer 3

Entire muscle: extension, ext rotation of hip in Sagittal and frontal planes
Upper fibers: abduction
Lower fibers: adduction

Question 4

Gluteus medius origin

Answer 4

Ilium (gluteal surface between the anterior and posterior gluteal lines)

Question 5

Gluteus medius insertion

Answer 5

Greater trochanter of femur (lateral surface)

Question 6

Gluteus medius, gluteus mimimus, and tensor fasciae latae innervation

Answer 6

Superior gluteal n (L4-S1)

Question 7

Gluteus medius and minimus action

Answer 7

Entire muscle: abduction of hip, stabilize pelvis in frontal plane
Anterior part: flexion and internal rotation
Posterior part: extension and external rotation

Question 8

Gluteus minimus origin

Answer 8

Ilium (gluteal surface between the anterior and inferior gluteal lines)

Question 9

Gluteus minimus insertion

Answer 9

Greater trochanter of femur (anterolateral surface )

Question 10

Tensor fasciae latae origin

Answer 10

ASIS

Question 11

Tensor fasciae latae insertion

Answer 11

Iliotibial tract

Question 12

Tensor fasciae latae action

Answer 12

Tenses the fascia lata

Hip joint: abduction, flexion, and internal rotation

Question 13

Piriformis origin

Answer 13

Pelvic surface of sacrum

Question 14

Piriformis insertion

Answer 14

Apex of greater trochanter of femur

Question 15

Piriformis innervation

Answer 15

Direct branches of sacral plexus S1-S2

Question 16

Piriformis action

Answer 16

Ext rotation and abduction of the flexed hip

Question 17

Obturator internus origin

Answer 17

Obturator membrane and its body boundaries

Question 18

Obturator internus insertion

Answer 18

Medial surface of the greater trochanter

Question 19

Obturator internus and superior gemelli innervation

Answer 19

Nerve to the Obturator internus L5,S1

Question 20

Obturator internus and gemelli action

Answer 20

Ext rotation, adduction, and extension of the hip joint

Question 21

Gemelli origin

Answer 21

Gemelli superior: ischial spine

Gemelli inferior: ischial tuberosity

Question 22

Gemelli insertion

Answer 22

Medial surface of greater trochanter

Question 23

Quadratus femoris origin

Answer 23

Lateral border of ischial tuberosity

Question 24

Quadratus femoris insertion

Answer 24

Intertrochanteric crest of femur

Question 25

Quadratus femoris action

Answer 25

External rotation and adduction of hip joint

Question 26

Gluteus Maximus origin

Answer 26

Sacrum (dorsal surface, lateral part)
Ilium (gluteal surface, posterior part)
Thoracolumbar fascia
Sacrotuberous ligament

Question 27

Quadratus femoris and inferior gemelli innervation

Answer 27

Nerve to the quadratus femoris L5,S1