MICROANATOMY

Detailed explanation-1: -The columnar epithelium is composed of epithelial cells that are column-shaped. The cell comprising the columnar epithelium is taller than it is wide. Its height is approximately four times its width. The nucleus in each cell is elongated and often found near the base.

Detailed explanation-2: -The correct option is A Goblet cells. Elongated cells that are present adjacent to each other and resemble a column are known as columnar epithelial cells. Goblet cells are specialized columnar cells that have the capacity to produce mucus and protect the surface.

Detailed explanation-3: -Columnar epithelial cells have a rectangular or column shape, meaning that they are taller than they are wide. The nucleus is also elongated, having a long oval shape. They have an organelle rich cytoplasm. These cells may have apical projections, such as microvilli or cilia.