WASHINGTON, Sept. 6, 2022 – Alveoli are the basic functional units of the human respiratory system, acting as tiny air sacs that exchange gases. Air inhaled through the mouth and nose flows into the ...

Inhalation and exhalation is the same as breathing or ventilation and is a physical process which moves air into and out of your lungs. Respiration is not the same as breathing, and is a chemical ...

Pulmonary function tests are a group of noninvasive breathing tests that measure how much air your lungs can hold, how quickly you can move air in and out and how efficiently your lungs transfer ...

A new Yale-led study has found that stem cells migrate to help repair damaged lung cells caused by injuries such as viral or bacterial infections. Breathing intakes oxygen and expels carbon dioxide, ...

What are pulmonary function tests? Pulmonary function tests (PFTs) are tests of lung function. They are intended to evaluate and monitor chronic obstructive pulmonary disease (COPD). COPD is ...

Your lungs are complex, yet delicate organs that replenish the oxygen in your blood with every breath you take. Each lung is divided into lobes and connected in the middle of your chest by your ...