Gluteal region

Question 1

Gluteus maximus

Answer 1

Attachments: posterior ilium, dorsal sacrum/coccyx, sacrotuberous ligament to IT band OR gluteal tuberosity of femur
Innervation: inferior gluteal nerve
Actions: extends flexed hip, assists with ER of hip, hip abduction

Question 2

Gluteus medius

Answer 2

Attachments: lateral ilium to lateral greater trochanter
Innervation: superior gluteal nerve
Actions: abducts hip, IR hip, stabilizes pelvis on stance leg when opposite leg is raised

Question 3

Gluteus minimus

Answer 3

Attachments: lateral ilium to anterior greater trochanter
Innervation: superior gluteal nerve
Actions: abducts hip, IR hip

Question 4

Inferior gemellus

Answer 4

Attachments: ischial tuberosity to medial greater trochanter
Innervation: nerve to quadratus femoris
Actions: ER extended hip

Question 5

Obturator internus

Answer 5

Attachments: pelvic surface of obturator membrane to medial greater trochanter
Innervation: nerve to obturator internus
Actions: ER extended hip, abducts flexed hip

Question 6

Piriformis

Answer 6

Attachments: anterior sacral segments 2-4, sacrotuberous ligament to superior greater trochanter
Innervation: ventral rami of L5, S1, S2
Actions: ER extended thigh, abducts flexed hip

Question 7

Quadratus femoris

Answer 7

Attachments: lateral ischial tuberosity to quadrate tubercle on intertrochanteric crest of femur
Innervation: nerve to quadratus femoris
Actions: ER hip

Question 8

Superior gemellus

Answer 8

Attachments: ischial spine to medial greater trochanter
Innervation: nerve to obturator internus
Action: ER extended hip

Question 9

Tensor fasciae latae

Answer 9

Attachments: ASIS and anterior iliac crest to IT band
Innervation: superior gluteal nerve
Action: abducts hip, IR hip, flexes hip