Your respiratory system manages airflow in and out of your lungs and contains organs such as your throat, trachea (windpipe), bronchial tubes, pleura, and lobes. Pulmonologists are certified to ...

Medically reviewed by Sanja Jelic, MD When you first start coughing, feel fatigued, and notice a low-grade fever, it can be hard to determine whether you have the common cold or bronchitis. A cold can ...