Gluteus muscles

Question 1

Insertion of gluetus maximus?

Answer 1

Upper fibers: iliotibial tract

Lower fibers: gluteal tuberosity

Question 2

Innervation of gluteus maximus?

Answer 2

Inferior gluteal n.

L5-S2

Question 3

Action of gluteus maximus?

Answer 3

Entire muscle: extends and externally rotates hip in sagittal and coronal planes
Upper fibers: abduciton
Lower fiber: adduction

Question 4

Origin of gluteus medius?

Answer 4

Ilium (gluteal surface below the iliac crest, between the anterior and posterior gluteal line)

Question 5

Insertion of gluteus medius?

Answer 5

Greater trochanter of femur (lateral surface)

Question 6

Innervation of gluteus medius and gluteus minimus?

Answer 6

Superior gluteal n.

L4-S1

Question 7

Action of gluteus medius and gluteus minimus?

Answer 7

Entire muscle: abducts the hip, stabilizes pelvis in coronal plane
Anterior part: flexion and internal rotation
Posterior part: extension and external rotation

Question 8

Origin of gluteus minimus?

Answer 8

Ilium (gluteal surface below origin of gluteus medius, between anterior and inferior gluteal lines)

Question 9

Insertion of gluteus minimus?

Answer 9

Greater trochanter of the femur (anterolateral surface)

Question 10

Origin of gluteus maximus?

Answer 10

Sacrum (dorsal surface, lateral part), ilium (gluteal surface, posterior part), thoracolumbar fascia, sacrotuberous ligament