Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Columnar epithelium
Introduction
Columnar epithelia are epithelial cells whose heights are at least twice their width. Columnar epithelia are divided into simple (or unilayered), and stratified (or multi-layered).