Pelvic Peritoneum


The structure of the pelvic floor forms the sigmoid mesocolon and pararectal and paravesical fossa. The uterus divides the peritoneal cavity into a rectouterine fossa (pouch of Douglas) bounded laterally by the rectouterine folds and an anterior vesicouterine fossa. The peritoneum covering the folds also forms the broad ligament. The pelvic viscera are connected to the pelvic wall by their adventitial layers. Between these attachments are cleavage planes separating one organ from the other. These planes include the vesicovaginal space, the rectovaginal space, the retrorectal space, and the pararectal and paravesical spaces previously mentioned.

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