What is the name of the serous membrane that lines the abdominal cavity?

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The serous membrane that lines the abdominal cavity is known as the peritoneum. This membrane serves several important functions, including providing a smooth and lubricated surface that facilitates movement of the abdominal organs against one another during bodily movements. It also helps to protect the abdominal organs and provides a conduit for blood vessels, lymphatics, and nerves.

In contrast, the pleurae are membranes that envelop the lungs and line the thoracic cavity; the pericardium surrounds the heart; and the meninges are protective membranes covering the brain and spinal cord. Each of these membranes serves distinct functions related to their respective anatomical locations, which is why they do not apply to the abdominal cavity. The specificity of the peritoneum in its anatomical role underscores its importance and distinction from the other membranes mentioned.

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