That’s how the respiratory system should work. But smoking can cause things to go awry ... Most lung cancers start in the cells that line the bronchial tubes, bronchioles, and alveoli. Researchers ...
Hemoptysis types include: Hemoptysis occurs when there is bleeding in your lower respiratory tract, including the lungs, windpipe, bronchi, bronchioles, and alveoli. Sometimes, you may cough up blood ...
Pneumonia is a respiratory infection caused by bacteria, viruses, or fungi that inflames the lung’s air sacs (alveoli). The condition can be mild or severe, affecting people of all ages ...