Lecture 17 - Bones and joints of pelvis Flashcards
what are the bony features of the ilium?
iliac crest superiorly
ASIS, PSIS
Gluteal surface (with lines) - technically part of the lower limb
what are the bony features of the pubis?
superior pubic ramus
inferior ramus
how many ramus on the ishium?
one- joins with eh infreior pubic ramus
During development there is a _____ ________ that separates the three bony contributions to the acetabulum
tri-radiate cartilage
The superior surface of the sacrum has a prominent inferior margin centrally called the ..
sacral promontary
The sacrum has _ fused vertebrae
5
What seprates the greater and lesser pelvis?
iliopectineal line
above the iliopectineal line is the …
flase (greater) pevlis
below is the true (lesser) pelvis
The true pelvis extends from the …
pelvic inlet to outlet
Define the pelvic inlet:
From front to back
pubic symphysis
pubic crest
pectineal line of the pubic
arcuate line of ilium
crosses the sacro-iliac joint
ant. margin of alar
sacral promontery
pelvic inlet is the _____diamter (ina female)
pelvic inlet is the widest diamter (ina female)
What are the definiting features of the male pelvis?
Thick and heavy
inlet shape: heart shaped
Greater sciatic notch:
narrow inverted
subpubic arch: acute angle
acetabulum: large
obturateor: round
What are the definiting features of the female pelvis?
thin and light
inlet shape: transverse oval
Greater sciatic notch:
almost 90 degrees
subpubic arch: obtuse angle
acetabulum: small
obturateor: oval
pelvic outlet is ___ shaped
diamond
The narrowest part of the pelvis is called the
plane of least dimensions (usually circular)
