Fluid found in the pleural cavity (between the pleural membrane layers). It further reduces friction during breathing Large surface area - many alveoli are present in the lungs with a shape that ...

is a rare respiratory disease that affects somewhere between 4 and 40 people per million worldwide. The condition causes substances such as fats and proteins to accumulate in the alveoli ...

Keywords nose, throat, ears, anatomy, health, mucus membrane, infections, hearing loss, medical advice, tonsils, epiglottis Email us at [email protected] if you have questions about the footage ...