文档介绍：新托福阅读模拟试题HormonesintheBody Uptothebeginningofthetwentiethcentury,,essentially,,emotion,movement,,experimentsbyWilliamBaylissandErnestStarlingonthechemicalsecretin,whichisproducedinthesmallintestinewhenfoodentersthestomach,,,,an,thepancreas. Suchacoordinationofprocesseshadbeenthoughttorequirecontrolbythenervoussystem;,takingitfromtheGreekwordhormon,meaning“toexcite”or“tosetinmotion.”issuetomakethingshappenelsewhere. Asmorehormoneswerediscovered,theywerecategorized,(whichmakeuptheendocrinesystem),,althoughitsecretessomechemicalsintothebloodandthusisalsopartoftheendocrinesystem.