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Pelvis Diameter meas
Doll & Pelvis
Question | Answer |
---|---|
True conjugate (pelvic inlet) | 11.5cm (usually 1.5-2cm less than diagonal) |
Obstetric conjugate (pelvic inlet) | 0.5cm less than true |
Oblique diameter of pelvic inlet | 12.5cm |
Diagonal conjugate (pelvic inlet) | 13cm |
Transverse diameter (pelvic inlet) | 13cm |
AP diameter (pelvic cavity) | 12.5cm |
Transverse diameter (pelvic cavity) | 12.5cm |
Oblique diameter (pelvic cavity) | 13.0cm |
AP diameter (pelvic outlet) | 10cm but can be enlarged to 12.5cm during labour |
Transverse diameter (pelvic outlet) | 11.5cm |
Diameter b/w ischial spines (pelvic outlet) | 10.5cm |
Oblique diameter (pelvic outlet) | 12.0cm |
Suprapubic angle that is ideal | 85-90 degrees |