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. The nuclei of columnar epithelial cells in the digestive tract appear to be lined up at the base of the cells, as illustrated in Figure 3.

What cells are found in columnar epithelium?

Simple Columnar Epithelium is made up of Glandular Goblet cells which secrete mucins to form mucin. 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.

What is special about columnar epithelial cells?

Columnar epithelial cells are dead-end cells that experience two extremes of pH at once. Apically, they are bathed in highly alkaline gut fluids and basally they are bathed in slightly acidic hemolymph.