1. PELVIC CAVITY DEFINED

2. Pelvis Defined Pelvic brim: Pelvic brim: = superior outlet. Boundaries: Sacral promontory. Arcuate lines. Iliopectineal line of pubis. Figures 3.1; 3.2; 3.5 Figures 3.1; 3.2; 3.5

3. Pelvis Defined Pelvic brim: Pelvic brim: Greater (false) pelvis: = expanded area above pelvic brim.

4. Pelvis Defined Pelvic outlet: Pelvic outlet: Bounded by: Coccyx. Sacrotuberous ligaments. Ischial tuberosities. Ischiopubic rami Pubic symphysis.

5. Pelvis Defined Pelvic outlet: Pelvic outlet: Lesser pelvis: Portion of bony pelvis below pelvic brim. Closed below by pelvic diaphragm.

6. Male vs Female Pelvis Male pelvis: Male pelvis:Thicker.Heavier. Deeper greater pelvis. Narrower and deeper lesser pelvis. Android pelvic inlet.

7. Male vs Female Pelvis Male pelvis: Male pelvis: Small pelvic outlet. Narrow pubic arch. Round obturator foramen. Large acetabulum.

8. Male vs Female Pelvis Female pelvis: Female pelvis:Thinner. Lighter pelvis. Shallow greater pelvis. Wide and shallow lesser pelvis. Gynecoid pelvic inlet.

9. Male vs Female Pelvis Female pelvis: Female pelvis: Large pelvic outlet. Wide pubic arch. Oval-shaped obturator foramen. Small acetabulum.