MCQ
Friction on the lungs surface reduces by
- ✓Double layered pleura
- BSingle layered pleura
- CRibs covering lungs
- DMucous membrane surrounding the lungs
✓
Answer
Correct option: A.
Double layered pleura
a
Humans have two lungs, which are covered by a double membrane called pleura, with pleural fluid between them. Pleural fluid reduces the friction on the lung surface. The outer pleural membrane is in close contact with the thoracic lining whereas the inner pleural membrane is in the contact with the lung surface
Humans have two lungs, which are covered by a double membrane called pleura, with pleural fluid between them. Pleural fluid reduces the friction on the lung surface. The outer pleural membrane is in close contact with the thoracic lining whereas the inner pleural membrane is in the contact with the lung surface
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