Dorsal muscles of buttocks

Question 1

Dorsal muscles of buttocks

Answer 1

M. gluteus superficialis
M. gluteus medius
M. gluteus profunda
M. piriformis
M. gluteobiceps

Question 2

M. gluteus medius

Answer 2

o Origin: crista iliaca and gluteal surface of iliac bone
o Insertion: greater trochanter of femur
o Action: strongest extensor of hip joint

Question 3

M. piriformis

Answer 3

oOrigin: last sacral and first caudal vertebrae
o Insertion: greater trochanter of femur
o Action: extension of hip joint

Question 4

M. gluteus profundus

Answer 4

oOrigin: gluteal surface and body of iliac bone
o Insertion: greater trochanter of femur
o Action: extension of hip joint

Question 5

M. gluteobiceps

Answer 5

M. gluteus superficialis in bo, su: fused with m. biceps femoris and they form

Question 6

M. gluteus superficialis (in Eq)

Answer 6

inserts on trochanter tertius

Question 7

M. piriformis in eq, bo, su

Answer 7

fused with m. gluteus medius

Question 8

M. gluteus superficialis

Answer 8

o Origin: sacrum and first caudal vertebrae, partly from sacrotuberous ligament; (and by means of deep gluteal fascia also from cranial dorsal iliac spine)

oInsertion: on tuberositas glutea (below greater trochanter)
o Action: extension of hip