Gluteal region Flashcards
What are the main movements of the gluteal region?
Abduction
Extension
Lateral rotation
(Of the lower limb)
What are the two main groups of gluteal muscles?
Deep lateral rotators
Superficial abductors and extensors
What are the superficial muscles?
Gluteus maximus
Gluteus medius
Gluteus minimus
What are the actions of the Gluteus maximus?
The main extensor of the thigh
What innervates the Gluteus maximus?
The inferior gluteal nerve
What are the actions of the Gluteus medius?
Abduction
Prevents pelvic drop
Slight medial rotation with flexed hip
What innervates the Gluteus medius?
Superior gluteal nerve
What are the actions of Gluteus minimus?
Medial rotator with flexed hip
Abduction
Prevents pelvic drop
What innervates the Gluteus minimus?
Superior gluteal nerve
What does damage to the superior gluteal nerve cause?
Paralysis of the Gluteus minimus and medius
How can you test for superior gluteal nerve damage?
Test for pelvic drop
What is pelvic drop?
When patient raises uneffected leg, the pelvis will tilt towards the uneffected side.
What are the deep muscles of the gluteal region?
Piriformis
Oburator internus
Superior and inferior Gemelli
Quadratus femoris
What are the main actions of the Piriformis?
Lateral rotation
Abduction
What innervates the Piriformis?
Nerve to piriformis
Why is the piriformis clinically important?
Travels through the greater sciatic foramen so divides it inot inferior and superior
What are the main actions of Oburator internus?
Lateral rotation
Abduction
What innervates the Oburator internus?
Nerve to Oburator internus
What separates the superior and inferior Gemelli?
The tendon of Oburator internus.
What are the main actions of the inferor and superior Gemelli?
Lateral rotation
Abduction
What innervates the inferior and superior Gemelli?
Superior - nerve to Oburator internus
Inferior - nerve to Quadratus femoris
What is the main action of Quadratus femoris?
Lateral rotation
What innovates the Quadratus femoris?
Nerve to quadratus femoris
