What important roles stomach perform during digestion?

Answer 1

The stomach secretes these fluids:•Gastric juice: acidic liquid secreted from the stomach; it contains hydrochloric acid, pepsin, water, and other compounds•Hydrochloric acid: very acidic, starts to denature proteins, converts pepsinogen into active enzyme pepsin (assist in protein digestion), kills many bacteria and germs that may have entered the body•Pepsin: proteins and fats enter the stomach largely unchanged, begins digestion of protein and activates other GI enzymes needed to digest your meal•Gastric lipase: one enzyme responsible for fat digestion, not very much produced so little digestion occurs•Mucus: thick whit fluid that protects the stomach lining from being digested by HCl and pepsin•the stomach also mixes and churns (more mechanical digestion) food until it becomes liquid chyme•Stomach has three bands of muscles; longitudinal, circular and diagonal•Pyloric sphincter regulates the release of chyme from the stomach into the first part of the small intestine, the duodenum