The cerebrum contains the major lobes of the brain and is responsible for receiving and giving meaning to information from the sense organs.EverythingyouneedtoknowaboutthecerebrumMedicallyreviewedbySeungguHan,M.D.—WrittenbyJonJohnsononMay20,2020DefinitionFunctionVs.cerebellumRelatedconditionsSummaryThecerebrumistheuppermostpartofthebrain.Itcontainstwohemispheressplitbyacentralfissure.Thecerebrumitselfcontainsthemajorlobesofthebrainandisresponsibleforreceivingandgivingmeaningtoinformationfromthesenseorgans,aswellascontrollingthebody.Thecerebrumdoesnotmakeuptheentirebrain,however.Thecerebellumandbrainstemsitbelowthecerebrumandworkalongsideittocontrolthevoluntaryactionsinthebody.Keepreadingtolearnmoreaboutthecerebrum,includingitsvariouselementsandhowtheyworktogether.Whatisit?TheinteractiveBodymapbelowshowsthebrain,andthecerebrumwithinin.Clickonittolearnmoreaboutthebrainanditsvariousparts.Thecerebrum,ortelencephalon,isthelargeupperpartofthebrain.Itisdividedintotwohemispheres.Inthehumanskull,thecerebrumsitsatopthebrainstem,withthecerebellumunderneaththerearportion.Thecerebrumitselfhasafewdivisions,whichneuroscientistsgenerallyusetoclassifythefunctionsofthedifferentareas.Thesectionsbelowwilldescribethesedivisionsinmoredetail.CerebralcortexThecerebralcortexistheoutermostlayerofthecerebrum,oritsgraymatter.Inhumans,thisgraymatterhasanunevensurfacewithmanyfolds.Ridgescalledgyriandvalleys,orfolds,calledsulcihelpincreasethesurfaceareaofthecerebralcortex.Thecerebralcortexalsohousesthefourmajorlobes:thefrontallobetheparietallobetheoccipitallobethetemporallobeTheselobeseachhavetwosections,dividedbythecentralfissureinthebrain.Astherearenootherdistinctseparationsinthebrain,neuroscientistsdividethelobesroughlybasedonthemajorfoldsinthearea.Majorfoldsincludethe:Centralsulcus:Thisdividesthefrontalandparietallobes.Precentralgyrus:Thisisaridgejustinfrontofthecentralsulcus,whichneuroscientistsusetoidentifytheprimarymotorcortex.Postcentralgyrus:Thisisaridgejustbehindthecentralsulcus,whichne