The specialized cell found in simple and pseudostratified columnar epithelium that produces mucus is called a goblet cell.

Here's why:

* Goblet cells are shaped like a goblet (a small, stemmed drinking cup), with a wide, open top and a narrow base. This shape allows them to store and release mucus effectively.

* Mucus is a thick, sticky fluid that helps protect and lubricate the lining of the epithelium. It traps foreign particles and pathogens, preventing them from entering the body.

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