Explain various steps of digestion.
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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.
Accessory organs: Liver: produces bile salts, which emulsify lipids, aiding their diges...
Stomach: Mixes and churns food with gastric juices to form chyme; Begins chemical ...
Small intestine: Mixes chyme with digestive juices; Propels food at a rate slow enough ...
Mouth: Ingests food; Chews and mixes food; Begins chemical breakdown of carbohy...
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