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</p> Signup and view all the answers

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

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