MSK Session 8- The Gluteal Region Flashcards
What are the 6 deep gluteal muscles, superior to inferior?
- piriformis
- gemelli superior
- obturator internus
- gemelli inferior
- obturator externus
- quadratus femoris
What are the 4 superficial muscles of the gluteal region?
Gluteus maximus
Gluteus medius
Gluteus minimus
Tensor fasciae latae
What is the gluteus maximus innervated by?
The inferior gluteal nerve
What is the arterial supply to gluteus maximus?
Superior and inferior gluteal arteries
What is the function of the gluteal muscles?
Lateral rotation
What are the two exceptions to functions of the gluteal muscles and what do they do?
Gluteus medius and gluteus minimus
They medially rotate the thigh
What is the function of gluteus maximus?
Extension of the thigh and lateral rotation.
What is the function of gluteus medius and minimus?
Medial rotation and abduction of the thigh.
Prevents pelvic drop when walking.
What is the innervation of gluteus medius and minimus?
The superior gluteal nerve.
What three muscles form the triceps coxae?
Obturator internus, gemelli (superior and inferior)
What is the function of the triceps coxae muscles?
Lateral rotation of the extended thigh and abduction of the flexed thigh
What is the innervation of piriformis?
Branches of anterior rami
What is the action of piriformis?
Lateral rotation of extended thigh and abduction of flexed thigh.
Where is the safe intramuscular injection site?
The superolateral quadrant of the thigh
The anterolateral quadrant
What is the name of the test used to test for gluteal nerve damage?
Trendelenberg test
