This is the goblet cell. It is named for its shape, which somewhat like a stemmed drinking glass. Do these cells contain something?
Yes, goblet cells are specialized epithelial cells that are found in various parts of the body, including the respiratory tract, intestines, and the conjunctiva of the eyes. These cells are named for their goblet-like shape, with a wide base and a narrow apex resembling a stemmed drinking glass. Goblet cells contain a large amount of intracellular secretory granules called mucin granules.
Mucin is a glycoprotein that, when released from goblet cells, combines with water to form mucus. Therefore, goblet cells play a crucial role in the production and secretion of mucus, which acts as a protective layer in areas exposed to external environments. The mucus helps to trap foreign particles, lubricate surfaces, and facilitate the movement of substances across the epithelial layers.