Mucus
Videos
Mucus is a slippery gel produced by, and covering, mucous membranes. Mucus forms a protective barrier between epithelial cells on the internal and external surfaces of the body and the outside environ
3D render showing accumulated mucus in the airways
Phlegm
Videos
Phlegm is mucus produced by the respiratory system, excluding that produced by the throat and nose passages. It often refers to respiratory mucus expelled by coughing, otherwise known as sputum. Phleg
Mucus
…in times of respiratory illness or inflammation, mucus can become thickened with cell debris, bacteria, and inflammatory cells. It is then known as phlegm which may be coughed up as sputum to clear the airway. Increased mucus production in the upper respiratory tract is a symptom of many common ailments…
A substance of phlegm