Skeletal Anatomy: Pelvis Flashcards
What is the sacro-iliac joint?
Articulation between the sacrum and the ilium. Form the union between the axial and appendicular skeleton.
What supports the sacrifice-iliac joint?
An extensive network of ligaments
What does the pelvis consist of?
2 coxal bones
Sacrum
Coccyx
How can the pelvis be divided into 2 parts?
False (greater) pelvis and the true (lesser) pelvis
What does the false pelvis enclose?
Organs within the inferior portion of the abdominal cavity
What does he true pelvis enclose?
Pelvic cavity, a subdivision of the abdominopelvic cavity
What is the pelvic brim?
Bony margin of the true pelvis
What is the pelvic inlet?
Opening enclosed by pelvic brim
What is the pelvic outlet bounded by?
Coccyx, ischial tuberosities, ischial spines and inferior border of pubic symphysis
What are the skeletal adaptations of the pelvis that females have for childbearing?
- Enlarged pelvic outlet
- Broader pubic angle
- Less curvature on sacrum and coccyx
- Wider, more circular pelvic inlet
- A relatively broad pelvis that does not extend as far superiorly
- Ilia that project further laterally but does not extend as far superior to the sacrum