What Is Alveoli?
The alveoli are balloons – like air sacs that hang at the distal end of the bronchial tree. However, they are most commonly used to describe the smallest of all air sacs in the lungs … Read more
bronchial tree
What Is Bronchitis?
Bronchitis is a condition in which the lining of the bronchi, which carries air into the lungs, can cause inflammation. Acute bronchitis is very common and often develops from a cold or other respiratory infection, … Read more