What is enviornmental tobacco smoke? (ETS)
inhaled (smoker) enviornmental (non smoker) 2nd hand smoke
What is the function of the Diaphragm?
It seperates thoracic cavity from abdominal cavity
What is inside the alveolus?
elastic fibers
What does smoking do to the trachea?
Cancer
What happens in emphysema?
lung disease making it hard to breathe