Sheer No The digestive juices secreted by the pancreas contain for catalyzing proteins, fats and carbohydrates; whereas the liver produces bile juice for digesting fats. The walls of the small intestine absorb the useful nutrients, which are transported to other parts of the body via the bloodstream. Inner walls of the small intestine are covered and microscopic finger-like structures known as villa, which protrude into the intestinal cavity and increase the effective surface area of the small intestines by more than 500 times. 


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