Their primary function is to absorb nutrients and vitamins. The small intestine is made up of three parts—the duodenum (first part), the jejunum (middle part), and the ileum (end part).

The digestive system is made up of key parts, each of which has a different ... Transfer the food to the tights, that's the small intestine. Squeeze out the remaining liquid.

The digestive system is made up of key parts, each of which has a different ... Transfer the food to the tights, that's the small intestine. Squeeze out the remaining liquid.