Which layer of pelvic fascia includes the membranous fascia that directly ensheathes the pelvic organs, forming the adventitial layer of each?

• A. Parietal pelvic fascia
• B. Endopelvic fascia
• C. End-abdominal fascia that lies between muscular abdomen and peritoneum superiorly
• D. Visceral pelvic fascia

Answer: (D)

Pelvic fascia is organized into a parietal part that lines the pelvic walls and a visceral part that directly wraps the pelvic organs. The layer that directly ensheathes each organ and forms its adventitial coat is the visceral pelvic fascia. This fascia surrounds organs like the bladder, uterus, and rectum, providing a fibrous, adventitial layer that anchors the organ to the pelvic walls and separates it from surrounding structures. This is distinct from the parietal pelvic fascia, which lines the walls, and from fascia higher up that lies between the abdominal muscles and peritoneum. In many texts, the visceral pelvic fascia is also called endopelvic fascia, underscoring its role as the packaging fascia around pelvic organs.