The cells responsible for secreting mucus in the body are known as “goblet cells.” Goblet cells are a type of specialized epithelial cell found in the mucous membranes of various organs and tissues, particularly in the respiratory and digestive systems.
The primary function of goblet cells is to produce and secrete mucus, a thick, viscous, and slimy substance. Mucus plays several important roles in the body, including:
Protecting and Lubricating: Mucus serves as a protective barrier in the respiratory and digestive tracts. It helps trap and remove foreign particles, such as dust, bacteria, and pathogens, preventing them from entering deeper tissues.
Moistening: Mucus helps keep the mucous membranes moist, which is essential for maintaining the health and function of these tissues.
Facilitating Movement: In the respiratory tract, mucus traps airborne particles and pathogens. Tiny hair-like structures called cilia, which line the respiratory tract, move in coordinated waves to transport the mucus and trapped particles away from the lungs and toward the throat. This process helps in clearing the airways.
Digestive Function: In the digestive system, mucus protects the lining of the stomach and intestines from the corrosive effects of stomach acid and enzymes. It also facilitates the smooth passage of food through the digestive tract.
Goblet cells are particularly abundant in the lining of the respiratory tract, where they play a crucial role in protecting the lungs and airways. When the respiratory tract is irritated or infected, goblet cells may produce more mucus as a defense mechanism, leading to symptoms such as increased coughing and mucus production.
In addition to goblet cells, other cells in the body, such as the epithelial cells lining the digestive tract and certain glandular cells, also secrete mucus to fulfill specific functions in their respective organs and systems.