Dr.Jay Variya on Instagram: "STOMACH Definition:- Stomach is a J-shaped muscular organ of digestive system •It is located between esophagus and duodenum •It stores food and helps in digestion •Layers of stomach wall Mucosa Submucosa Muscularis externa (oblique, circular, longitudinal) Serosa •Functions Temporary storage of food Mechanical digestion by churning Chemical digestion by gastric juice Secretion of HCI and pepsin Kills bacteria present in food Controls movement of food into duodenum •G