The human digestive system is an organ system used for digestion.
It consists of the gastrointestinal tract and the accessory organs of digestion including the tongue, salivary glands, pancreas, liver and gallbladder
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Mechanical chewing that breaks the food up into pieces.
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Saliva contains enzymes called amylase that chemically breaks down sugars
The oesophagus is a tube connected to the stomach, pushing food down into the stomach. -
The stomach is filled with a strong acid that breaks the food down chemically, and the stomach muscles also churn the food.
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The pancreas releases enzymes and indirectly break down macromolecules in the small intestine.
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The gallbladder releases bile into the small intestine and breaks down fats
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The small intestine absorbs most of the food, with cells that have lots of surface area for absorption of the nutrients.
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The large intestine absorbs water left over from the small intestine.