Superficial gluteal region

Question 1

Origin of gluteal maximus

Answer 1

Posterior surface of ilium, sacrum and coccyx

Question 2

Attachment of gluteus maximus

Answer 2

Iliotibial tract and greater trochanter

Question 3

Action of gluteus maximus

Answer 3

Main thigh extensor,

Assists with lateral rotation

Question 4

Innervation of gluteus maximus

Answer 4

Inferior gluteal nerve

Question 5

Origin of gluteal medius

Answer 5

Gluteal (posterior) surface of ilium

Question 6

Attachment of gluteal medius

Answer 6

Lateral surface of greater trochanter

Question 7

Action of gluteal medius

Answer 7

Abducts and medially rotates lower limb

During locomotion it secures the pelvis, preventing pelvic drop of the opposite limb

Question 8

Innervation of gluteal medius

Answer 8

Superior gluteal nerve

Question 9

Origin of gluteal minimus

Answer 9

Ilium

Question 10

Attachment of gluteal minimus

Answer 10

Anterior side of greater trochanter

Question 11

Action of gluteal minimus

Answer 11

Abducts and medially rotates lower limb

During locomotion it secures the pelvis, preventing pelvic drop on opposite limb

Question 12

Innervation of gluteal minimus

Answer 12

Superior gluteal nerve

Question 13

Origin of tensor fascia lata

Answer 13

Anterior iliac crest and ASIS

Question 14

Attachment of tensor fascia lata

Answer 14

Iliotibial tract which itself attaches to the lateral condyle of the tibia

Question 15

Actions of the tensor fascia lata

Answer 15

Abduction and medial rotation of lower limb

Supportive role in gait cycle

Question 16

Innervation of tensor fascia lata

Answer 16

Superior gluteal nerve

Question 17

Muscles of the superficial gluteal regions

Answer 17

Gluteus maximus, gluteus medius, gluteus minimus and tensor fascia lata

Question 18

How is the pelvis stabilised during locomotion

Answer 18

In standing, gluteus medius and minimus contract when the contralateral leg raised to prevent pelvis dropping on that side

Question 19

Consequence of superior gluteal nerve damage

Answer 19

Positive trendelenberg sign

Question 20

How do you test for trendelenberg sign

Answer 20

Ask patient to stand unassisted on each leg in turn

Question 21

What’s positive trendelenberg sign

Answer 21

Pelvic drop occurs on unsupported leg (uneven level of iliac crests)