THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -Serous membranes have two layers. The parietal layers of the membranes line the walls of the body cavity (pariet-refers to a cavity wall). The viscera l layer of the membrane covers the organs (the viscera). Between the parietal and visceral layers is a very thin, fluid-filled serous space, or cavity.

Detailed explanation-2: -The serous membranes are: Peritoneum-the peritoneal cavity is found within the abdominal & pelvic body cavities. Connecting peritoneum forms:-mesentery-ligament. Pleura-two pleural cavities (separated by mediastinum) are found within the thoracic cavity.

Detailed explanation-3: -Parietal serosa line the body cavities and visceral serosa line the outer part of the organs within the body cavity. Therefore, parietal serous membranes are the outer membranes lining a body cavity and visceral serous membranes are the inner membranes lining a body cavity.