What is the purpose of the pleural fluid in the lungs?
What is the purpose of the pleural fluid in the lungs?
To maintain the shape of the lungs
To reduce friction on the lung surface
To protect the lungs from external factors
To provide structural support for the lungs
Solution
The lungs are covered by a double layered pleura, with pleural fluid between them. This fluid helps to reduce friction on the lung surface, allowing for smooth movement of the lungs during breathing.