Cells called alveolar myofibroblasts, which have a central role in the development of the lung after birth, receive an orchestrated input from a range of different signaling pathways.

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 ...

Air keeps moving through your airways until it reaches tiny balloon-like air sacs in your lungs called alveoli. From there, the oxygen moves into your blood. Healthy lungs carry oxygen from the ...

I was recently sick with what I thought was the flu. I had a fever, sore throat and a terrible cough. I have asthma, so my husband insisted that I see our family doctor.

Treatment focuses on management of symptoms. This includes medications to ease cough and physical discomfort and to lower fever.