The abdominopelvic cavity is lined with a thin, shiny serous membrane that also folds back to cover most of the organs contained within the cavity. The outer portion of this membrane, the layer that lines the cavity, is called the parietal __________; that covering the organs is called the visceral __________. This slippery membrane allows the organs to slide over each other as they function. The__________ also carries blood vessels, lymphatic vessels, and nerves.