To keep the body healthy, how does the small intestine work with other systems of digestion? please give at least 3 examples ...

Protiens, Fat, Carbs: Your small intestine begins at your duodenum and this is where your body actually digests your foods. Enzymes from your liver and pancreas break food down into its basic particles. Meats/proteins to amino acids, sugars to carbohydrates and fats to fatty acids. The rest of your small bowel has miles of small bowel to digest.