Dissection 10

Question 1

Obstetric procedure

Answer 1

Pudendal nerve block

Question 2

Supplies the skin over the posterior aspect of the thigh

Answer 2

Posterior cutaneous nerve of the thigh

Question 3

Bony landmark on the skull

Answer 3

External occipital protruberance

Question 4

Bony landmark on back of sacrum

Answer 4

Median sacral crest

Question 5

What level are the iliac crests?

Answer 5

L3/L4

Question 6

What level would you do a lumbar puncture and why?

Answer 6

L3/L4

-avoids injury to the terminal part of the spinal cord (conus medullaris)

Question 7

What level does the spinal cord end?

Answer 7

L1/L2

Question 8

Where does the iliotibial tract run to?

Answer 8

From ASIS to lateral tibail condyle at the Gerdy tubercle

Question 9

What is the tensor fascia lata?

Answer 9

The muscular part of the fascia lata

Question 10

Where does the gluteus maximus attach?

Answer 10

Proximally: iliac crest, sacrum, sacrotuberous ligament and coccyx
Distally: iliotibial tract

Question 11

Most powerful extensor of the hip

Answer 11

Gluteus maximus

Question 12

Muscle needed to get out of chair/climb up stairs

Answer 12

Gluteus maximus

Question 13

Inferior gluteal neurovascular bundle

Answer 13

This bundle contains the inferior gluteal artery, vein and nerve (L5, S1 and S2)

Question 14

What supplies the gluteus maximus?

Answer 14

Inferior gluteal neurovascular bundle

Question 15

What supplies the gluteus medius and minimus?

Answer 15

Superior gluteal nerve bundle

Question 16

What does the superior gluteal nerve bundle contain?

Answer 16

The superior gluteal artery, vein and nerve (L5, S1 and S2)

Question 17

Where do the gluteus medius and minimus attach to?

Answer 17

Ilium to greater trochanter of femur

Question 18

What do the gluteus medius and minimus do?

Answer 18

They abduct and internally rotate the thigh at the hip joint

Question 19

Nerve supply to the gluteus medius and minimus?

Answer 19

Superior gluteal nerve (L5, S1 and S2)

Question 20

How could you identify damage to the gluteus medius/minimus?

Answer 20

Trendelenberg test

Question 21

What type of fibres are carried in the posterior cutaneous nerve of the thigh?

Answer 21

Sensory and sympathetic fibres

Question 22

Supplies the skin and fascia of the posterior aspect of the thigh

Answer 22

Posterior cutaneous nerve

Question 23

Pudendal nerve in relation to the posterior cutaneous nerve of the thigh?

Answer 23

Pudendal nerve is medial

Question 24

Where must you give intragluteal injections and why?

Answer 24

Must be given to the upper outer (superolateral) quadrant of buttock to avoid injury to the sciatic nerve