Gluteal Region

Question 1

superior cluneal nerves

Answer 1

lateral branches of dorsal primary rami of L1-L3

supply skin of superior buttocks to tubercle of iliac crest

Question 2

middle cluneal nerves

Answer 2

lateral branches of dorsal primary rami S1-S3

supply skin over sacrum and adjacent area of buttocks

Question 3

inferior cluneal nerves

Answer 3

branches of posterior femoral cutaneous nerve

supply skin of inferior half of buttocks as far as greater trochanter

Question 4

What is superficial fascia in the gluteal region? What areas is it continuous with?

Answer 4

the buttock endowed with relatively thick superficial layer of fat continuous with adjoining regions including superficial fascia of the back, abdomen, perineum, and thigh

Question 5

What is deep fascia attached to? covering? continuous with?

Answer 5

attached above to the crest of the ilium and the sacrum covering gluteus maximus and gluteus medius. continuous with fascia lata of the thigh

Question 6

gluteus maximus m origin

Answer 6

posterior gluteal line, dorsal surface of sacrum and coccyx and sacrotuberous ligament

Question 7

gluteus maximus m insertion

Answer 7

gluteal tuberosity of the femur

Question 8

gluteus maximus m innervation

Answer 8

inferior gluteal nerve

Question 9

gluteus maximus m function

Answer 9

extends the thigh

Question 10

gluteus medius m origin

Answer 10

outer surface of the wing of the ilium and deep fascia

Question 11

gluteus medius m insertion

Answer 11

greater trochanter

Question 12

gluteus medius m function

Answer 12

abduct and medially rotate the thigh, stabilize pelvis when lifting foot

Question 13

gluteus medius m innervation

Answer 13

superior gluteal nerve

Question 14

gluteus minimus m origin

Answer 14

outer surface of the wing of the ilium

Question 15

gluteus minimus m insertion

Answer 15

greater trochanter

Question 16

gluteus minimus m function

Answer 16

abduct and medially rotate the thigh, stabilize pelvis when lifting foot

Question 17

gluteus minimus m innervation

Answer 17

superior gluteal nerve

Question 18

tensor fasciae lata m origin

Answer 18

iliac crest and anterior superior iliac spine

Question 19

tensor fasciae lata m insertion

Answer 19

iliotibial tract

Question 20

tensor fasciae lata m function

Answer 20

flex and abduct the thigh, medially rotate thigh, extension of leg

Question 21

tensor fasciae lata m innervation

Answer 21

superior gluteal nerve

Question 22

trendelenberg sign

Answer 22

when trunk tilts when walking due to weakened gluteus medius and gluteus minimus muscles

Question 23

piriformis m origin

Answer 23

pelvis surface of the sacrum and sacrotuberous ligament

Question 24

piriformis m insertion

Answer 24

medial side of the greater trochanter

Question 25

What does the piriformis m pass through?

Answer 25

greater sciatic foramen

Question 26

piriformis m function

Answer 26

laterally rotates thigh

Question 27

piriformis m innervation

Answer 27

nerve to the piriformis m

Question 28

obturator internus m origin

Answer 28

pelvic surface of the obturator membrane and bone surrounding membrane

Question 29

obturator internus m insertion

Answer 29

greater trochanter

Question 30

obturator internus m function

Answer 30

lateral rotation of the thigh

Question 31

obturator internus m innervation

Answer 31

nerve to the obturator internus

Question 32

obturator internus m blood supply

Answer 32

inferior gluteal artery

Question 33

superior gemellus m origin

Answer 33

ischial spine

Question 34

superior gemellus m insertion

Answer 34

greater trochanter

Question 35

superior gemellus m innervation

Answer 35

nerve to obturator internus

Question 36

superior gemellus m function

Answer 36

lateral rotation of thigh

Question 37

inferior gemellus m origin

Answer 37

ischial tuberosity

Question 38

inferior gemellus m insertion

Answer 38

greater trochanter

Question 39

inferior gemellus m function

Answer 39

lateral rotation of thigh

Question 40

inferior gemellus m innervation

Answer 40

nerve to quadratus femoris

Question 41

quadratus femoris m origin

Answer 41

ischial tuberosity

Question 42

quadratus femoris m insertion

Answer 42

intertrochanteric crest

Question 43

quadratus femoris m innervation

Answer 43

nerve to the quadratus femoris

Question 44

quadratus femoris m function

Answer 44

lateral rotator of thigh

Question 45

greater sciatic foramen contents

Answer 45

1. piriformis
2-4. superior gluteal A, V, N
5-7. inferior gluteal A, V, N
8. sciatic N
9. posterior femoral cutaneous N
10. pudendal N
11. internal pudendal A
12. internal pudendal V

Question 46

lesser sciatic foramen contents

Answer 46

1. pudendal N
2. internal pudendal A
3. internal pudendal V
4. obturator internus m