The formation of saber sheath trachea is caused by the injury of the tracheal cartilage due to chroniccoughing, resulting in remodeling and dystrophic ossification of the cartilage.
剑鞘气管的形成是由于慢性咳嗽所致气管软骨环的损伤、重塑型和营养不良性骨化。
2
Inflammation of the respiratory tract causes coughing, mucus secretion, aggravation of asthma and chronic bronchitis and makes people more prone to infections of the respiratory tract.
呼吸道的炎症导致咳嗽、粘液分泌、加重哮喘和慢性支气管炎并使人们更易患呼吸道感染。
3
The nearly 10 million Americans who suffer from chronic obstructive pulmonary disease rely on medications and strenuous coughing to help break up the thick gobs of mucus clogging their lungs.