Which pleural layer lines the inner chest wall?

Which pleural layer lines the inner chest wall?

• A. Visceral
• B. Parietal
• C. Pulmonary
• D. Respiratory

Answer: (B)

The parietal pleura lines the inner chest wall. It forms the lining of the thoracic cavity and extends over the rib cage, diaphragm, and mediastinum, while the visceral pleura covers the surface of the lungs themselves. The space between these two layers, the pleural cavity, contains a small amount of fluid to allow smooth movement as you breathe. So, when asked which layer lines the inner chest wall, the correct answer is the parietal pleura. The other terms describe the lung surface (visceral or pulmonary) or aren’t a pleural layer at all (respiratory).

The parietal pleura lines the inner chest wall. It forms the lining of the thoracic cavity and extends over the rib cage, diaphragm, and mediastinum, while the visceral pleura covers the surface of the lungs themselves. The space between these two layers, the pleural cavity, contains a small amount of fluid to allow smooth movement as you breathe. So, when asked which layer lines the inner chest wall, the correct answer is the parietal pleura. The other terms describe the lung surface (visceral or pulmonary) or aren’t a pleural layer at all (respiratory).