Gluteal Region And Posterior Thigh

Question 1

What are the 3 bones which make up the pelvic girdle?

Answer 1

The ilium, ischium and pubis.

They all unite to form the acetabulum.

Question 2

How are the ilium, pubis, ischium connected?

Answer 2

Pubic symphysis. (At the front). Posteriorly at the sacrum.

Question 3

What is the role of the gluteal region muscles?

Answer 3

The superficial abduct and extend and the deep laterally rotate the femur at the hip joint.

Question 4

What are the 3 superficial muscles?

Answer 4

Gluteus Maximus

• Main extensor of the thigh
• Assists with lateral rotation
• Used when force is required such as: running/climbing

Gluteus Medius and minimums
Abducts and medically rotates thigh
Stabilises pelvis during walking, preventing pelvis drop on the opposite limb.

Question 5

What are the innervation and blood supply of gluteus maximus, gluteus medius and minimums.

Answer 5

The gluteus maximus= inferior gluteal nerve and artery
Gluteus medius and gluteus minimums=
Superior gluteal nerve and artery.

Question 6

What are the five deep muscles of the thigh?

Answer 6

Piriformis 
Gemellus Superior 
Obturator internus 
Gemellus Inferior 
Quadratus femoris