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1、DigestivesystemThefunctionofthedigestivesystemistopreparefoodforintakebybodycells.Nutrientsmustbebrokendownbymechanicalandchemicalmeansintomoleculesthataresmallenoughtobeabsorbedintothecirculation.Withincells,thenutrientsareusedforenergyandforrebuild
2、ingvitalcellcomponents.Digestiontakesplaceinthedigestivetract.Mouth,oralcavityOr/o:oralcavity,oraladministrationorallanguagestomat/o:stomatitis,stomatoscopysaliva:isthewaterysubstanceproducedinthemouths.Itisproducedinandsecretedfromthesalivaryglands.
3、Humansalivaiscomposedmostlyofwater(99.5%),butalsoincludeselectrolytes,mucus,antibacterialcompounds,andvariousenzymes.TheenzymesinthesalivabreakdownsomeofthestarchandfatinthefoodatthemolecularlevelsalivaryamylaseToothDent/i:Dentist:amedicalprofessiona
4、lwhospecializesinthecareofteethDentalgia:toothacheodont/o:Oligodontia:theconditionofnaturallyhavingfewerthantheregularnumberofteeth,itisalsocalledhypodontiaPeriodontitis:referstoanumberofinflammatorydiseasesaffectingthetissuesthatsurroundandsupportth
5、eteethtongueLingu/oLinguisticSublingualtablet:Usuallyasmall,flattabletintendedtobeinsertedbeneaththetongue,wheretheactiveingredientisabsorbeddirectlythroughtheoralmucosaandintoblood;suchatabletdissolvesverypromptly.Nitroglyerinsublingualtablet:atypeo
6、fvasodilator.Itrelaxesbloodvessels,increasingthebloodandoxygensupplytoyourheart.Thismedicineisusedtorelievechestpaincausedbyangina.esophagusesophagusisamusculartubewhosecontractionscanpropelfoodtothestomach.eso-=inside,inwardphag/o=swallowesogastriti
7、s:Inflammationofthemucousmembraneofthestomachphagocyte:cellsthatprotectthebodybyingestingharmfulforeignparticles,bacteriaanddeadordyingcellsStomachThethreebasic/mainfunctionsofthestomacharetokillanybacteriaingested,breakdownthefoodintosmallerpiecesto
8、createalargersurfaceareaforeasierdigestion,andtoholdfoodandreleaseitataconstantrate.ThestomachisahighlyacidicenvironmentduetohydrochloricacidproductionandsecretionwhichproducesapHrangeusuallybetween1and2.Combinedwithdigestiveenzymes,suchanenvironment
