MICROANATOMY

Detailed explanation-1: -Bronchitis is when the airways leading to your lungs (trachea and bronchi) get inflamed and fill with mucus. You get a nagging cough as your body tries to get rid of the mucus. Your cough can last two or more weeks.

Detailed explanation-2: -Bronchitis is an infection of the main airways of the lungs (bronchi), causing them to become irritated and inflamed. The main symptom is a cough, which may bring up yellow-grey mucus (phlegm). Bronchitis may also cause a sore throat and wheezing. Read more about the symptoms of bronchitis.

Detailed explanation-3: -The cause of chronic bronchitis is usually long-term exposure to irritants that damage your lungs and airways. In the United States, cigarette smoke is the main cause. Pipe, cigar, and other types of tobacco smoke can also cause chronic bronchitis, especially if you inhale them.

Detailed explanation-4: -Bronchitis is an inflammation of the lining of your bronchial tubes, which carry air to and from your lungs. People who have bronchitis often cough up thickened mucus, which can be discolored.