Gas exchange occurs in the alveoli which are found in the lungs ... The spongy mesophyll cell membranes are also thin, moist and permeable, aiding gas exchange further.

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 ...

Dear Reader: Let’s begin by discussing pneumonia, which is a kind of respiratory ... as alveoli, the proper functioning of these air sacs is crucial to our health and well-being. The membrane ...