Reproductive and Genitourinary System (2nd copy) PDF
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Uploaded by EnterprisingNonagon
Monash University Malaysia
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Summary
This document discusses the shapes of the bony pelvis, differentiating between female (Gynaecoid) and male (Android) pelvises, along with other types. It also compares the male and female pelvises highlighting key differences in their structure. The document likely serves as a study aid or educational material related to human anatomy.
Full Transcript
Shapes of the Bony Pelvis Gynaecoid Wider, broader and lighter (characteristically Oval pelvic inlet - greatest diameter for the baby’s female) head during parturition Greater pelvic outlet size = easier childbirth...
Shapes of the Bony Pelvis Gynaecoid Wider, broader and lighter (characteristically Oval pelvic inlet - greatest diameter for the baby’s female) head during parturition Greater pelvic outlet size = easier childbirth Short, dull ischial spines Wide pubic arch (>90°) 50% of women Android Heart-shaped pelvic inlet (characteristically Prominent ischial spines male) Narrow pubic arch More difficult to give birth Pelvic outlet = narrow, straight and long 25% of women Platypelloid Kidney-shaped pelvic brim Shallow pelvic cavity Short antero-posteriorly and wide transversely Anthropoid Oval pelvic brim Short transversely and wide anteroposteriorly Male vs Female Pelvis’ Female Pelvis Male Pelvis Wider, broader and lighter Narrower, thicker and heavier Oval shaped pelvic inlet = Heart-shaped pelvic inlet = wide narrow Larger pelvic outlet More narrow pelvic outlet Less prominent ischial spines Prominent ischial spines → → greater bispinous diameter lesser bispinous diameter Greater subpubic angle Smaller subpubic angle Stretchable pubic, Non-stretchable ligaments sacrotuberous and sacrospinous ligaments (in pregnancy due to progesterone)
