metabolism 2 test- fluoride
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Created by:
Italygirl10 on July 21, 2009
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7 terms
Terms | Definitions |
|---|---|
 adequate intake of fluoride | males 19-30: 4 mg/d, females 19-30: 3 mg/d |
| fluoride sources | tap water, grains, cereal products, marine fish, tea, most foods contain <0.05 mg/ 100g. Beverages made with fluoridated water |
| fluoride forms | fluorine- gas; fluoride - fluorine bound to metal, non-metal, or organic compound, physiologically active in body |
| fluoride absorption | fluoridated water - 100%, 50-80% from foods |
| fluoride functions | bone: amorphous state (exchangeable pool), crystalline (part of hydroxyapatite, adds strength, excess = brittle bones); tooth: prevent dental caries, excess = enamel mottling (dental fluorosis) |
| fluoride deficiency | symptoms: increase in dental caries (cavities), skeletal tissue |
| fluoride toxicity | fluorosis- changes to bone, kidney, muscle function. Dental fluorosis- mottling of teeth. Death: 32-64 mg fluoride/kg. Upper limit - 1.3 mg/d for children ages 1-3 |
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