MICROANATOMY

Detailed explanation-1: -Goblet cells secret mucous into the digestive tract lumen. Columnar epithelial cells are taller than they are wide: they resemble a stack of columns in an epithelial layer, and are most commonly found in a single-layer arrangement.

Detailed explanation-2: -Non-ciliated simple columnar epithelium is made up of glandular goblet cells which secrete mucin to form mucus. The rest of the cell is made up of cytoplasm with membrane bound secretory granules which secrete the mucin, and are found towards the apical surface of the cell.

Detailed explanation-3: -Goblet cells are modified epithelial cells that secrete mucus on the surface of mucous membranes of organs, particularly those of the lower digestive tract and airways. Histologically, they are mucous merocrine exocrine glands.