The outer layer of connective tissue that anchors the esophagus to surrounding structures in the chest. 2. The Gatekeepers: Upper and Lower Sphincters
Located at the junction where the esophagus meets the stomach. Its primary job is to act as a one-way valve, letting food in but preventing caustic stomach acid from splashing back up. 3. Physiology: The Art of Peristalsis Gastrointestinal Anatomy and Physiology: The Es...
A layer containing connective tissue, blood vessels, and mucous-secreting glands that provide lubrication. The outer layer of connective tissue that anchors