Actually, most of the absorption of nutrients into the bloodstream occurs in the small intestine, not the large intestine. The small intestine consists of three parts: the duodenum, jejunum, and ileum, and is specifically adapted for nutrient absorption due to its large surface area created by villi and microvilli.
The large intestine, on the other hand, primarily absorbs water and electrolytes, along with some vitamins produced by gut bacteria (such as vitamin K and some B vitamins). Its main functions are to form and eliminate waste (feces) rather than to absorb nutrients.
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