Glutes & Deep Lateral Rotators

Question 0

Gluteus medius

Answer 0

O: external ilium (between anterior and posterior gluteal lines)
I: greater trochanter or the femur
A: entire muscle abducts.
Anterior: flexion, medial rotation, anterior tilt
Posterior: extension, lateral rotation, posterior tilt
N: superior gluteal
Blood: superior gluteal

Question 1

Gluteus Maxiumus

Answer 1

O: 1) posterior iliac crest. 2) edge of sacrum 3) coccyx
I: gluteal tuberosity and iTB
A; EXTENSION, lateral rotation, abduction (upper 1/3), adduction (lower 2/3); posterior tilt of pelvis.
N: inferior gluteal nerve
Blood: superior and inferior gluteal artery

Question 2

Gluteus minimus

Answer 2

O: external ilium (between anterior and inferior gluteal lines)
I: greater trochanter of the femur
A: entire muscle abducts.
Anterior: flexion, medial rotation, anterior tilt
Posterior: extension, lateral rotation, posterior tilt
N: superior gluteal
Blood: superior gluteal

Question 3

Piriformis

Answer 3

O: Anterior sacrum
I: greater trochanter (superior medial)
A: lateral rotation, horizontal flexion (if knee flexed)
N: piriformis
Blood: superior and inferior gluteal arteries
* goes from lateral rotator to medial rotator if hip flexed

Question 4

Superior gemellus

Answer 4

O: ischial spine
I:  greater trochanter (medial)
A:  lateral rotation; horizontal abduction if knee flexed
N: nerve to obiturator internus
Blood: inferior gluteal

Question 5

Obturator internus

Answer 5

O: internal surface of margin of obturator foramen
I: greater trochanter (medial)
A: lateral rotation; horizontal flexion if knee flexed
N: nerve to obturator internus
Blood: superior and inferior gluteal arteries, and obturator artery

Question 6

Inferior gemellus

Answer 6

O: ischial tuberosity (superior aspect)
I: greater trochanter (medial)
A: lateral rotation of the thigh; horizontal abduction if thigh is flexed
N: quadratus femoris nerve
Blood: inferior gluteal and obturator

Question 7

Obturator externus

Answer 7

O: external surface of the margins of obturator foramen
I:  trochanteric fossa
A: lateral rotation
N: obturator nerve
Blood: obturator artery

Question 8

Quadratus femoris

Answer 8

O: ischial tuberosity (lateral border)
I: intertrochanteric crest
A: lateral rotation
N: quadratus femoris
Blood: inferior gluteal and obturator