We live in the fire zone in Altadena, California. After the evacuations ended, we came home, and now my throat is constantly sore. Dear Reader: We are near one of the fire zones in Southern California ...

Asbestos is perhaps the best known example ... In a nutshell, inflammation of the tiny air sacs of the lungs (the alveoli) generated by an allergic response to an alien particle entering the ...

When air goes down into the lungs, it passes through smaller and smaller tubes and ends up in tiny air sacs called alveoli. Oxygen passes through the walls of the alveoli and enters tiny blood ...

Gas exchange is a process that involves the swapping of gases that occurs at exchange surfaces such as the alveoli found within your lungs. Gas exchange allows oxygen to travel into your cells for ...