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Multiple Choice
Which of the following serous membranes lines the walls of the thoracic cavity?
A
Parietal peritoneum
B
Visceral pleura
C
Parietal pleura
D
Visceral pericardium
Verified step by step guidance
1
Understand the concept of serous membranes: Serous membranes are thin layers of tissue that line body cavities and cover organs. They consist of two layers: the parietal layer (lining the cavity walls) and the visceral layer (covering the organs).
Identify the thoracic cavity: The thoracic cavity is the space within the chest that houses the lungs, heart, and other structures. It is surrounded by the rib cage and diaphragm.
Match the serous membrane to the thoracic cavity: The serous membrane associated with the thoracic cavity is the pleura. The pleura has two layers: the parietal pleura (lining the walls of the thoracic cavity) and the visceral pleura (covering the lungs).
Eliminate incorrect options: The parietal peritoneum lines the abdominal cavity, not the thoracic cavity. The visceral pericardium covers the heart, not the thoracic cavity walls.
Select the correct answer: The parietal pleura is the serous membrane that lines the walls of the thoracic cavity.