The reason why the cough is common in the morning is because there is an abundance of goblet cells, which produce sputum in the airways of smokers. Ironically, goblet cells proliferate in the ...

The trachea has a number of adaptations: cartilage rings in the walls of the trachea help to keep it open ciliated epithelium and goblet cells to clean the air before it reaches the lungs Goblet ...

In a recent study, researchers at the University of California, San Diego, have provided new insights into the central role ...