The Digestive System. pg. 324 - 338. Function. The main function of the digestive system is to break down macromolecules into substances the body can use. Digestion. Food provides (most of) the nutrients we need to survive Food is processed in 4 stages: Ingestion Digestion Absorption
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pg. 324 - 338
The digestive tract is a tube that runs from the mouth to the anus. Food passes through the tract and its related organs.
The accessory organs are ones that assist in the process of digestion, food does not travel through them.
Peristalsis – involuntary smooth musclecontractions that force contents onward