Histology Embryology Cardiac junction stomach esophagus Epithelial transition cardiac glands fundic(gastric Stratified Squamous glands non keratinized to simple columnar muscularis externa It is clinically important as it is the most site of esophageal carcinoma.• Epithelial transition ---Stratified Squamous nonkeratinized to simple columnar • It is clinically important, as it is the most site of esophageal carcinoma. Cardiac Junction