MSK - Superficial Muscles of the Gluteal Region Flashcards Preview

ESA 2 > MSK - Superficial Muscles of the Gluteal Region > Flashcards

Flashcards in MSK - Superficial Muscles of the Gluteal Region Deck (23):
1

What are the four superficial muscles of the Gluteal region?

- Gluteus Maximus

- Gluteus Medius

- Gluteus Minimus

- Tensor Fasciae Latae

2

What is the origin of gluteus maximus?

Posterior surface of the ilium, sacrum and coccyx

3

Where does gluteus maximus insert?

- Iliotibial tract

- Greater trochanter of the femur

4

What is the innervation of gluteus maximus?

Inferior gluteal nerve

5

What is the arterial supply of gluteus maximus?

Superior and inferior gluteal arteries

6

What are the actions of gluteus maximus?

- Extension of the thigh

- Lateral rotation of the thigh (when force is required)

7

What is the origin of gluteus medius?

Gluteal surface of the ilium

8

Where does gluteus medius insert?

Lateral surface of the greater trochanter

9

What is the innervation of gluteus medius?

Superior gluteal nerve

10

What is the arterial supply of gluteus medius?

Superior gluteal artery

11

What are the actions of gluteus medius?

- Abduction of the lower limb

- Medial rotation of the lower limb

12

What is the origin of gluteus minimus?

Ilium

13

Where does gluteus minimus insert?

Converges to form a tendon and inserts at the anterior surface of the greater trochanter

14

What is the innervation of gluteus minimus?

Superior gluteal nerve

15

What is the arterial supply of gluteus minimus?

Superior gluteal artery

16

What are the actions of gluteus minimus?

- Abduction of the lower limb

- Medial rotation of the lower limb

17

What is the origin of tensor fasciae latae?

Anterior iliac crest

18

Where does tensor fasciae latae insert?

- Anterior superior iliac spine (ASIS)

- Iliotibial tract (which then attaches to the lateral condyle of the tibia)

19

What is the innervation of tensor fasciae latae?

Superior gluteal nerve

20

What is the arterial supply of tensor fasciae latae?

- Lateral circumflex femoral artery

- Superior gluteal artery

21

What are the actions of tensor fasciae latae?

- Abduction of the lower limb

- Medial rotation of the lower limb

22

What can happen as a result of superior gluteal nerve damage?

- Paralysis of gluteus medius and minimus

- Important for stabilisation of the pelvis when moving so damage can cause an unsteady pelvis (Trendelburg Sign)

23

How can Trendelburg Sign be tested for? How would you know if there is damage to the superior gluteal nerve?

- Ask patient to stand unassisted on each leg in turn

- Pelvic drop on unassisted leg = Damage (e.g. if left muscles are weak, right iliac crest will drop)

Decks in ESA 2 Class (63):