| umls-concept:C0008677 | skos:definition | CSP: condition characterized by persistent coughing, increased secretion from the bronchial mucosa, obstruction of the respiratory passages, scanty or profuse expectoration, and necrosis and fibrosis of the respiratory tract.,MEDLINEPLUS: <p>Bronchitis is an inflammation of the bronchial tubes, the airways that carry air to your lungs. It causes a cough that often brings up mucus, as well as shortness of breath, wheezing, and chest tightness. There are two main types of bronchitis: <a href='http://www.nlm.nih.gov/medlineplus/acutebronchitis.html'>acute</a> and chronic. </p><p>Chronic bronchitis is one type of <a href='http://www.nlm.nih.gov/medlineplus/copdchronicobstructivepulmonarydisease.html'>COPD</a> (chronic obstructive pulmonary disease). The inflamed bronchi produce a lot of mucus. This leads to cough and difficulty getting air in and out of the lungs. Cigarette <a href='http://www.nlm.nih.gov/medlineplus/smoking.html'>smoking</a> is the most common cause. Breathing in other fumes and dusts over a lon | lld:umls |
