digestive for final
Terms
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- what are the goals of the digestive system?
- Obtain nutrients from ingested foodstuffs Eliminate solid wastes
- what functions does the digestive tract do?
- Ingestion Digestion Absorption Metabolism Defecation
- what\'s ingestion?
- physical process of consumption
- is digestion mechanical or chemical?
- both
- what is chemical digestion?
- breakdown of nutrients (proteins, fats, & lipids) by enzymes
- what is absorbtion?
- movement of nutrients etc across the digestive epithelium and into the interstitial fluid of the GI tract
- whats metabolism?
- the processing of absorbed food materials
- whats defication?
- the elimination of any undigested material which contains no nutrients
- whats the GI tract?
- A hollow tube that runs from the oral cavity (mouth-lips), through the ventral body cavities, to the anal orifice – lined by epithelial tissue