What is the term for the lining on the outside of the lungs?

The correct term for the lining on the outside of the lungs is the visceral pleura. This thin membrane covers the outer surface of the lungs and is important because it allows for smooth movement of the lungs during respiration while also serving to protect them.

The visceral pleura is one part of the pleural membrane system, which consists of two layers: the visceral pleura and the parietal pleura. The parietal pleura is the membrane that lines the chest wall and diaphragm, while the visceral pleura adheres tightly to the lungs. The space between these two layers, known as the pleural cavity, contains pleural fluid, which reduces friction and aids in lung inflation.

Understanding the roles of these membranes is crucial for recognizing various respiratory conditions and the anatomy involved in breathing, as any issues such as pleuritis can lead to significant respiratory distress.