Which cells of intestinal mucosal epithelium secrete mucus?

CONCEPT:

Goblet Cells and Mucus Secretion

• The intestinal mucosal epithelium contains specialized cells responsible for various functions, including absorption and secretion.
• Goblet cells are a type of epithelial cell found in the lining of the intestines and other mucosal surfaces.
• These cells are named "goblet" due to their cup-like shape, and they are primarily involved in secreting mucus.
• Mucus plays a crucial role in protecting the intestinal lining from mechanical damage, pathogens, and digestive enzymes.

EXPLANATION

• Peptic cells are responsible for secreting pepsinogen, not mucus.
• Oxyntic cells (also known as parietal cells) secrete hydrochloric acid and intrinsic factor, not mucus.
• Chief cells primarily secrete digestive enzymes like pepsinogen in the stomach, not mucus.
• Goblet cells are the correct answer, as they secrete mucus in the intestinal mucosal epithelium.

Goblet cells produce and release mucus continuously to form a protective layer over the epithelial cells, ensuring smooth passage of food and preventing microbial invasion.