Final answer:
A pulmonologist is a medical specialist concerned with the health of the respiratory system. They diagnose and treat diseases and conditions that affect the lungs and bronchial tubes.
Step-by-step explanation:
A pulmonologist is a medical specialist concerned with the health of the respiratory system. They diagnose and treat diseases and conditions that affect the lungs and bronchial tubes. Examples of respiratory diseases that a pulmonologist may treat include asthma, chronic obstructive pulmonary disease (COPD), and pneumonia.