SKULL_mini-eBook

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1、Thereareapproximately206bonesinyourbodyand22*ofthembelongtoyourskull.Thesebones,allirregularinshape,fittogetherlikepuzzlepieces.*Teeth,bone-likestructureslocatedintheskull,arenotcounted.Skullbonesareeitherpartofthefacialskeleton(bonesthatmakeuptheface)......orpartofthecranium(bonesthatprotectt

2、heSharethisslideshow!brain).www.visiblebody.comThecalvaria(skullcap)istheupperpartofthecranium.Eachboneinthecalvariaisnamedforthecorrespondinglobeofthecerebrum--thelargestpartofthebrain.Thefrontalboneprotectsthefrontallobe.Theparietalbonesprotecttheparietallobes.Theoccipitalboneprotectstheocci

3、pitallobe.Thetemporalboneprotectsthetemporallobe.Theoccipitalbone:givesshapetothebackoftheskull.protectstheoccipitallobe.givespassagetothemedullaoblongata.Theforamenmagnumisthenameoftheopeningintheoccipitalbonethroughwhichthebrainandspinalcordconnect.Sharethisslideshow!www.visiblebody.comInadd

4、itiontoprotectingthecorrespondinglobesofthebrain,thetemporalboneshaveopeningsthatconnectthestructuresoftheinnerandouterears.projectionsyouseeattheFactoid:Thepointedbottomofthetemporalboneiscalledthestyloidprocess.Musclesoftheneckandextrinsictongueattachthere.Sharethisslideshow!www.visiblebody.

5、comAsutureisafibrousjointfoundonlyintheskull.Theparietalbones(inblue)cometogethertoformthesagittalsutureandalsoformthecoronalsuturewiththefrontalbone.Factoid:thereare17suturesintheskull.Sharethisslideshow!www.visiblebody.comThesphenoidandtheethmoidarenotpartofthecalvariabutarepartofthecranium.

6、Theyprotecttheundersideofthebrain.Thesphenoidisabat-shapedboneandisthekeystoneboneatthebaseofthecranium.Sharethisslideshow!www.visiblebody.comTheethmoidisaspongy,cubedbonethatgivesshapetopartoftheroofofthenoseandtheorbits.Theethmoidisalsohometonumerousforaminathroughwhichthebranchesoftheolfact

7、orynervespass.cribiformplateoftheethmoidFactoid:Thesupportstheolfactorybulb(theterminusoftheolfactorynerve).Sharethisslideshow!www.visiblebody.comWhilethefrontalbonegivesshapetotheforehead,orbits,andnasalcavity,itisnotpartofthefacialske