输卵管造影是女性经子宫颈注入对比剂课件

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1、Chapter13TheEndocrineSystemTheEndocrineSystemandHomeostasis(ByCameronMcDonald&JenelleWillcott)EndocrineGlands(By:MeganStrideandBaileyBall)Biology320113.1EndocrineSystem&HormonesTheendocrinesystemconsistsofthehormoneproducingglandsandtissuesinthebody.Whatarehormones?hormonesarechemica

2、lsthatcirculatethroughoutthebloodandcontrolorgansandtissuesinthebody.Whenahormoneaffectsorgans,thoseorgansareknownastargetorgans.TargetOrgansEachtargetorganisonlyaffectedbyaparticularhormonebecauseofspecificreceptorsonthesurfaceofthetargetorgan.Onlyacertainhormonecanfitintothisreceptor

3、.Thisisusuallycalledthelock–and–keyhypothesis

4、TheEndocrineSystemalsoplaysalargeroleinthebody’scontrolofhomeostasis.Thissystemhasanumberoffunctions:-Controlofheartrate-ControlofBloodpressure-Controlofimmuneresponse-Controlofreproduction-Controlofemotionalstate-Controloftheoverallgrowtha

5、nddevelopmentofthebody.TheEndocrineSystemTheendocrinesystemconsistsofmanyglandsandtissues.Someoftheglandsthatitconsistsofare:-pituitarygland-thyroidgland-parathyroidgland-adrenalgland-thymusgland-pinealglandItalsocontainsthepancreasandreproductivetissues(ovariesandtestes)Someotherorgan

6、ssuchastheliver,skin,kidneyandpartsofthedigestiveandcirculatorysystemsproducehormonesaswell.ComponentsoftheEndocrineSystemTherearetwotypesofglandsinthehumanbodyEndocrineglandsExocrineglandsEndocrineglandsareductlessglandswhichsecretetheirhormonesdirectlyintothebloodstream.Exocrinegland

7、sreleasetheirsecretionsthroughductsortubesie.Sweatglands,salivaryglandsandtearglands.Hormonescarrythesignalstooneormoreorgansortissuesinthebodycausingaseriesorbiochemicalprocessesinsidethetargetorgan.Althoughonlyverysmallquantitiesofhormonesareproducedandsecretedintotheblood,theirimpac

8、tinthetargetishuge.ComponentsoftheEndocrineSystemHormoneswhicharesecretedintothebloodcomeintocontactwithvirtuallyallcellsandtissuesastheycirculatethroughthebody.However,theytriggeraresponseonlyinthosecellswhichhavespecificreceptorsitesforthehormone.FactorsInHormoneProduction&Function