The Female Pelvis Flashcards
List three functions of the pelvis.
It attaches the lower limbs to the axial skeleton. It transmits the weight of the upper body to the lower limbs. It protects the reproductive organs, bladder and rectum.
The pelvic girdle is made up of which four bones?
Two innominate bones, the sacrum and the coccyx.
Which three bones make up an innominate bone?
The ilium, the ischium and the pubis.
Where do the ilium, ischium and pubis join?
At the acetabulum.
How long does it take for the ilium, ischium and pubis to fuse together?
20-25 years.
What are the four joints of the pelvis
The lumbosacral joint, the sacroiliac joint, the sacrococcygeal joint, the symphysis pubis.
What does the lumbosacral joint connect?
It connects the sacrum to the 5th lumbar vertebra
What does the sacroiliac joint connect?
It connects the ilium to the sacrum.
What does the sacrococcygeal joint connect?
It connects the sacrum to the coccyx
What does the symphysis pubis connect?
It connects the two anterior portions of the two pubic bones.
Find a picture of an unlabelled pelvis, and identify where the following features are: sacral promontory, ala, iliac fossa, iliac crest, sacral foramina, greater sciatic notch, anterior superior iliac spine, coccyx, sacrum, ischial spine, superior pubic ramus, acetabulum, anterior inferior iliac spine, lesser sciatic notch, ischial tuberosity, obturator foramen, symphysis pubis, pubic arch, inferior pubic ramus, pubic tubercle.
Compare against a labelled image of a pelvis.
Which three hormones allow the pelvic joints and ligaments some stretch and movement during pregnancy?
Oestrogen, relaxin and progesterone
Where does the sacroiliac ligament pass to and from?
It passes in front of and behind each sacroiliac joint.
Where does the sacrospinous ligament pass to and from?
It passes from the sides of the sacrum and coccyx to the ischial spines.
Where does the sacrotuberous ligament pass to and from?
It passes from the sides of the sacrum and coccyx to the ischial tuberosities.
