explain the digestion in human being.
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The digestive system ingests and digests food, absorbs released nutrients, and excretes food components that are indigestible.
The six activities involved in this process are ingestion, motility, mechanical digestion, chemical digestion, absorption, and defecation.
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The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion (the tongue, salivary glands, pancreas, liver, and gallbladder). Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body.
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