What are the membranes within the abdominopelvic subdivision of the ventral cavity called?

The membranes within the abdominopelvic subdivision of the ventral cavity are referred to as the peritoneum. The peritoneum is a serous membrane that lines the abdominal cavity and covers the organs within it. It plays a crucial role in providing a lubricated surface that allows for the movement of organs while also supporting them and serving as a conduit for blood vessels, lymphatics, and nerves.

Understanding the distinction among the other membranes is important. The pleura refers specifically to the membranes surrounding the lungs; the pericardium encloses the heart; and the meninges are protective coverings of the brain and spinal cord. Each of these membranes serves specific functions in different body cavities, highlighting the specialized nature of anatomical structures in maintaining organ health and function.