Thoracic Cavity Chapter 3: Pleural Sac and Mediastinum

• One lung and one pleural cavity
• Two pleural sacs, one on each side, and a mediastinum (correct)
• Two lungs and one thoracic cavity
• One pleural sac and one mediastinum

• To separate the lungs from the thoracic cavity
• To store oxygen for the lungs
• To produce mucus and lubricate the lungs
• To facilitate lung movement and minimize friction (correct)

• A thick mass of tissue forming a median partition between the two lungs
• A thin film of serous fluid between the visceral and parietal pleura
• A type of lung disease
• A thick mass of tissue forming a median partition between the two pleurae and lungs (correct)

<p>The part of the parietal pleura that covers the apex of the lung (D)</p> Signup and view all the answers

<p>The point where the costal pleura meets the diaphragmatic pleura (A)</p> Signup and view all the answers

<p>The pleural cavity (A)</p> Signup and view all the answers