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cian.buckley
Mind Map by , created more than 1 year ago

Mind map of the digestive system and associated concepts

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cian.buckley
Created by cian.buckley about 12 years ago
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The Digestive SystemThe Human DigestiveSystemMouthOesophagusLiverSmallIntestineLargeIntestineStomachPancreasWhere food is mixed and chewedwith salivaEnzyme called Amylase begins thebreakdown of starchtube that carries food to the stomach bymuscular actionproduces bile which helps tobreakdown fatsstores food and mixes it withdigestive juicesmakes acid to killbacteriaproduces more digestiveenzymespasses water back into the blood leavingsolid wastefood molecules are absorbed intobloodstreamafter final breakdown byenzymesNutritionIngestionDigestionAbsorptionAssimilationEgestiontaking food into themouthbreaking down of food into itsmoleculesphysical/chemicalpassing of the food moleculesthrough the walls of the smallintestine and into the bloodstreambody cells take in the food moleculesfrom the bloodcells use food molecules for energy, growthand repairundigested food is passed out ofthe bodye.g. FibreDigestionChemicalPhyicalfirst stage ofdigestionbreaking down of food into smaller pieces in the mouthteethincisorssharp teeth at front of mouthused to cut foodcaninespointed teeth which tear foodpremolarsflat teeth used to grind foodmolarslarge, flat teeth at the backalso used for grindingsecond stage of digestionenzymesmade in mouth, stomach, pancreas and small intestinecatalystsAn Enzyme is a chemical, made in a living cell, which canspeed up a chemical reaction, without itself being changedsubstratesubstance enzyme acts onproductbroken down substrateAn Enzyme in ActionStarchcarbohydrate made up of long chains of glucose molecules linked togetherbroken down in the mouth and small intestine by an enzyme called amylaseAmylasebreaks down starch into many molecules of a sugar called maltoseMaltaseenzymeenzymeacts on maltose molecules breaking them down into single glucose moleculesglucose moleculesfinal breakdown products of starchsmall enough to be absorbed into bloodthrough wall of small intestineDouble click this nodeto edit the textClick and drag this buttonto create a new node