Keywords: Illu esophageal layers.jpg Source http //training seer cancer gov/ss_module07_ugi/unit02_sec04_anatomy html 1 Mucosa 2 Submucosa 3 Muscularis 4 Adventitia 5 Instraited muscle 6 Striated and smooth 7 Smooth muscle 8 Lamina muscularis mucosae 9 Esophageal glands PD-USGov Histological schematic |