Gluteal Region

Question 1

Gluteus maximus

Answer 1

• Action: Cheif extensor of the thigh and lateral rotation; slight extension of leg when working with tensor fascia lata
• Innervation: Inferior gluteal nerve (L5-S1)

Question 2

Gluteus medius and minimus

Answer 2

• Action: Thigh abduction and medial rotation (particularly gluteus minimus)
• Innervation: Superior gluteal nerve (L5-S1)

Question 3

Tensor fascia lata

Answer 3

• Action: Abducts, medially rotates, and flexes thigh; slight extension of knee along with the gluteus maximus
• Innervation: Superior gluteal nerve (L4-S1)

Question 4

Obturator externus

Answer 4

-Innervation: Obturator nerve (L3, L4)

Question 5

Piriformis

Answer 5

-Innervation: Nerve to piriformis (part of common fibular nerve)

Question 6

Obturator internus

Answer 6

-Innervation: Nerve to obturator (part of tibial nerve)

Question 7

Superior gemelli

Answer 7

-Innervation: Nerve to superior gemelli (part of tibial nerve)

Question 8

Inferior gemelli

Answer 8

-Innervation: Nerve to inferior gemilli (part of tibial nerve)

Question 9

Tibial nerve

Answer 9

-Anterior division of sciatic nerve

Question 10

Common fibular nerve

Answer 10

-Posterior division of sciatic nerve

Question 11

Quadratus femoris

Answer 11

-Innervation: Nerve to quadratus femoris ( part of tibial nerve)