Question

Lungs are enclosed in :

• A. Pericardium
• B. Peritoneum
• C. Pleural membrane
• D. none of the above

Answer 1

The Correct Option is C

The question asks about the structure that encloses the lungs. Let's evaluate the options one by one:

1. Pericardium: This is a membrane that encloses the heart, not the lungs. Therefore, this option is incorrect.
2. Peritoneum: This is the serous membrane that forms the lining of the abdominal cavity. It encloses abdominal organs, not the lungs. Hence, this option is also incorrect.
3. Pleural membrane: This is a serous membrane that covers the lungs and lines the chest cavity. It is divided into the visceral pleura, which is attached to the lung surface, and the parietal pleura, which is attached to the chest wall. This membrane indeed encloses the lungs, making this the correct option.
4. None of the above: This is not correct as we have identified that the pleural membrane does enclose the lungs.

Therefore, the correct answer is Pleural membrane.

The pleural membrane serves several functions, including facilitating the smooth movement of the lungs during breathing and protecting the lungs by acting as a barrier against infections from the surroundings.