The goblet cells secrete mucin proteins in a matrix composed of water, complex sugars, salts which form the mucus. This matrix is distributed evenly on the surface of the epithelium by the ...

Goblet cells secrete mucus, forming a protective layer that prevents harmful pathogens from reaching the inner gut tissues.

Prachee Avasthi took a winding path to specializing in studying cilia—the hairlike appendages that enable cells to move about and sense their environments. During her undergraduate days at 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 lungs. Cilia are small hairs which ...