Introduction to Pelvis and Perineum

Question 1

which bones fuse to form the acetabulum in the adult

Answer 1

ilium
pubis
ischium

Question 2

sacral hiatus

Answer 2

the lamina of L5 does not fuse properly, epidural or caudal anesthesia

Question 3

how are the ASIS and pubic symphysis related anatomically

Answer 3

same vertical plane

Question 4

true vs false pelvis

Answer 4

true pelvis is the lesser pelvis (divided by pelvic brim) and inferiorly bounded by pelvic diaphragm
false pelvis is the greater pelvis (continuation with abdominal cavity.

Question 5

bony landmarks of pelvic brim

Answer 5

sacral promentory
sacral ala
arcuate line of ilium
pecten pubis
pubic crest (containing pubic symphysis)
latter three are linea terminalis

Question 6

pelvic outlet?boundaries? closed off?

Answer 6

inferior pelvic aperature.

Question 7

Bones fuse to form the hip bone

Answer 7

left and right coxal bomes (os coxae) and sacrum