Muscles of the gluteal region Flashcards
What does the sciatic nerve pass through?
The great sciatic notch
What muscle is this?
Quadratus femoris
What action is carried out by the obturator internus, superior gemellus and inferior gemellus?
Lateral rotation
What muscle is this?
Inferior gemellus
What are the short lateral rotators of the hip?
- Obturator internus
- Obturator externus
- Superior gemellus
- Inferior gemellus
- Quadratus femoris
What nerve innervates the gluteus medius and the gluteus minimus muscle?
The superior gluteal nerve
What muscle is this?
piriformis
Where does the pirformis muscle attach?
- the sacrum
- the superior part of the greater trochanter
What is the most superficial muscle in the gluteal region?
Gluteus maximus
What muscle extends the hip?
Gluteus maximus
What are the main actions of the gluteus medius and the gluteus minimus muscles?
- abduction of the hip
- medial/internal rotation (due to some attachment on the anterior greater trochanter)
What muscle is this?
The gluteus medius
What is the ilio-tibial tract
- a thickening of the deep fascia of the thigh
- that runs down the lateral aspect and anterior to the knee
What muscle is this?
The superior gemellus
What muscle is this?
The gluteus minimus
What passes through the lesser sciatic notch?
The tendon of obturator internus
Where does the gluteus maximus attach?
- across the iliac spine
- on the sacrum
- onto the greater trochanter
What is the main action of the gluteus maximus?
extension of the hip joint
What is the main action of the piriformis mucle?
Lateral rotation of the hip joint
What muscle is this?
Gluteus maximus
What nerve innervates the gluteus maximus?
Inferior gluteal nerve
What muscle is this?
Obturator externus
What muscle is this?
The obturator internus
What is the function of the sacrotuberous ligament?
it is a stabiliser of the sacroiliac joint and connects the bony pelvis to the vertebral column
