The small intestine is a coiled organ about, and it is around 7.5m to 9m in length. This is where digestion is completed. The small intestine also absorb most of the nutrients of the food. The liver releases bile,which prepares fat for digestion,in to the small intestine. Pancreatic juices contain enzymes that digests carbohydrates and fats. The walls also release enzymes to digest proteins. The small intestine digest the three nutrients, carbohydrates and fats.
The small intestine is divided into three structural parts:
1.duodenum(largely responsible for breaking down of food)
2.jejunum(is covered in projections call villi , increasing the surface area of tissues available to absorb nutrients.)
3.ileum(absorb whatever products of digestion that is not absorbed by the jejunum)
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