Digestion System-What will be happened if you eat a sandwich? -
...les. After that, a tongue pushes them into esophagus. An esophagus has neither mechanical nor chemical digestion, because this is just a pipe way of food leading to a stomach. Food is moved down an esophagus by peristalsis, which is movement looks like muscle constructions. In a stomach, there are both mechanical and chemical digestion systems. In here, very strong acid enzymes called pepsin break down proteins of cheese and ham. Also, a stomach is one of muscle, then it can churn food. After that, gastric juice goes down to a small intestine, but upper and lower valves prevent only acid to enter into a small intestine and let only food to goes down to a small intestine.. In a small intestine, most chemical digestion occurs. Enzymes such as lipase, carbohydrases, proteases, and nucleases digest all starch, lipids, protein, and nucleic acid. Undigested bread, cheese and ham are digested in here. This organ is about six to seven meters long and has walls with billions of villis and microvi...