W31/L3: Pelvic anatomy

Question 1

What are the margins of the pelvic brim?

Answer 1

Promontory of sacrum
Margin of ala
Arcuate line
Pecten pubis
Pubic crest
Pubic symphysis

Question 2

What is the name for the typical female shape of pelvic inlet?

Answer 2

Gynacoid

Question 3

What is the name for the two most common male shapes of pelvic inlet?

Answer 3

Android

Anthropoid

Question 4

What’s a good reliable measure of determining male or female bone?

Answer 4

The width of the acetabulum compared with the width of the pubic bone.

In women, the distance from acetabulum to symphysis is greater then with of acetuabulum. In men it’s about the same.

Question 5

What are the margins of the pelvic outlet?

Answer 5

A diamond formed by:

Inferior margin of the pubic symphysis
Ischeal tuberosities
Tip of coccyx

Question 6

What’s the name of the articular surface of the SIJ?

Answer 6

Auricular surface

Question 7

What are the 3 sacroiliac ligaments?

Answer 7

Anterior
Posterior
Interosseous

Question 8

What are the 3 accessory ligaments of the SIJ?

Answer 8

Iliulumbar
Sacrotuberous
Sacrospinous

Question 9

What does the iliolumbar ligament connect?

Answer 9

The iliac crest to the transverse process of L5

Question 10

What are the 2 ligaments of the pubic symphysis?

Answer 10

Superior

Arcuate