Simple Columnar Epithelium
Single layer of tall and slender cells, with oval nuclei at base attached to basement membrane. Lines the most of the organs of Gastrointestinal tract.
Functions:
- Protection (act as barrier)
- Secretory (Stomach)
- Absorptive (Intestine)
In stomach, it exhibits numerous temporary folds. Also extends downwards to form numerous indentations called Gastric Pits.