W-27 Pelvis and Gluteal Region - Muscles (ACTIONS AND INNERVATIONS ONLY)

Question 1

Tensor Fascia Lata

Answer 1

Actions:
Thigh - Flexion, medial rotation and abduction
Trunk - stabilisation

Nerve: Superior gluteal nerve

Question 2

Gluteus Medius

Answer 2

Actions:
Hip - abduction, preventing adduction
Thigh - Medial rotation

Nerve: Superior gluteal nerve

Question 3

Gluteus minimus

Answer 3

Actions: (Works with the gluteus medius)
Hip - abduction, preventing adduction
Thigh - medial rotation

Nerve: Superior gluteal nerve

Question 4

Piriformus

Answer 4

Actions:
Thigh - external rotation

Nerve: Nerve to the piriformis

Question 5

Gemellus superior

Answer 5

Actions:
Thigh - lateral rotation

Nerve: Nerve to the obturator internus

Question 6

Obturator internus

Answer 6

Actions:
Thigh - abduction, external rotation
Hip - stability

Nerve: Nerve to the obturator internus

Question 7

Gemellus inferior

Answer 7

Actions:
Thigh - lateral rotation

Nerve: Nerve to the quadratus femoris

Question 8

Quadratus femoris

Answer 8

Actions:
Thigh - lateral rotation, adduction

Nerve: Nerve to the quadratus femoris

Question 9

Obturtator externus

Answer 9

Actions:
Thigh - adduction, lateral rotation

Nerve: Obturator nerve (posterior branch)

Question 10

Psoas

Answer 10

Actions:
Thigh - adduction, lateral rotation

Nerve: Lumbar plexus via anterior branches of L1-L3 nerves

Question 11

Iliacus

Answer 11

Actions:
Thigh - flexion, lateral rotation

Nerve: Femoral nerve