1.1 - Bony Pelvis

Question 1

Identify the bony features of the superior pelvic aperture (7)

Answer 1

• Sacral promontory - Ala of the sacrum - Arcuate line of the ilium - Pecten pubis - Pubic tubercle - Pubic crest - Pubic symphysis

Question 2

Identify the bony margins/structures forming the boundary of the inferior pelvic aperture (4)

Answer 2

• Inferior margin of pubic symphysis - Inferior rami of pubis - Sacrotuberous ligament - Tip of the coccyx

Question 3

Identify the parts of the pelvis which comprise the ‘true’ pelvis (aka lesser pelvis/inferior to inlet)

Answer 3

• Pelvic colon - Rectum - Bladder

Question 4

Identify the parts of the pelvis which comprise the ‘false pelvis’ (aka greater pelvis/superior to inlet)

Answer 4

• Ileum - Sigmoid colon

Question 5

Difference between the greater pelvis of females vs males?

Answer 5

Females = shallow Makes = deep

Question 6

Difference between the lesser pelvis of females vs males?

Answer 6

Females = wide and shallow Males = narrow and deep

Question 7

Difference between the shape of the pelvic inlet of females vs males?

Answer 7

Females = oval and rounded Males = heart-shaped

Question 8

Difference between the pelvic outlet of females vs males?

Answer 8

Females = comparatively large Males = comparatively small

Question 9

Difference between the subpubic angle of females vs males?

Answer 9

Females = obtuse: greater than 90 degrees Males = acute: less than 90 degrees

Question 10

Difference between the obturator foramen of females vs males?

Answer 10

Females = oval Males = round

Question 11

Difference between the acetabulum in females vs males?

Answer 11

Females = small Males = large

Question 12

What type of joint is the sacroiliac joint?

Answer 12

Synovial plane

Question 13

What type of joint is the pubic symphysis?

Answer 13

Secondary cartilaginous (meaning hyaline + fibrocartilage)

Question 14

Male vs Female pelvis

Answer 14