Osteology and Basics (Tasks 1&2)

Question 1

Bony landmark for pudendal nerve during anaesthesia/surgery

Answer 1

Ischial Spine

Question 2

Ligament attaching external obliques to pelvis

Answer 2

Inguinal Ligament

Question 3

Function of obturator nerve

Answer 3

Innervates skin and muscles of medial thigh (adduction)

Question 4

Ligaments which prevent pelvic tilt and rotation

Answer 4

Sacrospinous and Sacrotuberous Ligaments

Question 5

Contents of greater sciatic foramen

Answer 5

Piriformis Muscle, Pudendal Nerve, Sciatic Nerve, Inferior and Superior Gluteal Nerves, Internal Pudendal Artery

Question 6

Contents of lesser sciatic foramen

Answer 6

Pudendal nerve

Question 7

Role of pudendal nerve

Answer 7

Innervates skin of external genitalia, anus, lower anal canal and perineum

Question 8

Anatomical position of pelvic inlet

Answer 8

60 degrees to the horizontal

Question 9

Origin of superior gluteal nerve

Answer 9

L4-S1 (Sacral Plexus)

Question 10

Origin of inferior gluteal nerve

Answer 10

L5-S2 (Sacral Plexus)

Question 11

Origin of posterior femoral nerve

Answer 11

L5-S2 (Sacral Plexus)

Question 12

Origin of pudendal nerve

Answer 12

S2-S4 (Sacral Plexus)

Question 13

Origin of sciatic nerve

Answer 13

L4-S3 (Sacral Plexus)

Question 14

Pelvimetry measurements

Answer 14

Diameter of pelvic brim, diameter of pelvic cavity, axis of birth canal, pelvic planes

Question 15

Potential problems with rectouterine pouch

Answer 15

Tearing in labour, Rectovaginal fistulae in IBD, may be tender upon PR in Appendicitis