顱骨與其連結LocomotorSystem2Thebonyframeworkofthehead,termedtheskull(cranium)presentsthemostcomplexstructureoftheskeleton.一、顱的組成（一）腦顱cranialbones共23塊（聽小骨未計入）以眶上緣和外耳門上緣為界分腦顱和面顱兩部。不成對的：額骨篩骨蝶骨枕骨成對的：顳骨頂骨LocomotorSystem4bonesoftheskullbonesofthefaceabovetheorbitsbelowtheearsbaseoftheskullLocomotorSystem5篩骨ethmoidbone篩板垂直板篩骨迷路蝶骨sphenoidbone小翼、大翼、翼突、體前面觀體小翼大翼翼突眶上裂蝶竇口顳骨temporalboneLocomotorSystem9額骨frontalbone額鱗眶部鼻部LocomotorSystem10枕骨occipitalbone（二）面顱facialbones(內臟顱visceralcranium)共15塊。不成對的：犁骨下頜骨舌骨成對的：上頜骨腭骨顴骨鼻骨淚骨下鼻甲LocomotorSystem12frontalbonezygomaticbone(formstheprominenceofthecheek)sphenoidbonemaxilla(holdstheupperteeth)foraminaforsensorynerveofthemid-face下頜骨mandible一體兩支：

下頜體、下頜支、下頜角、冠突、髁突、下頜頭、下頜頸、咬肌粗隆、翼肌粗隆、頦棘、頦隆凸、頦孔、下頜孔LocomotorSystem14mandibleneckofcondylecoronoidprocessramusanglebodymentalprocess(chin)FRACTURESOFTHEMANDIBLE舌骨hyoidbone大角小角體上頜骨maxilla一體四突：上頜體、顴突、腭突、牙槽突、額突(三）顱的整體觀顱前面觀眶骨性鼻腔骨性口腔LocomotorSystem18frontalbonezygomaticbone(formstheprominenceofthecheek)sphenoidbonemaxilla(holdstheupperteeth)foraminaforsensorynerveofthemid-face眶上孔眶下孔視神經管眶上裂眶下裂眶下溝左側眶:四壁一尖左側骨性鼻腔外側壁蝶竇篩竇額竇上頜竇上鼻甲下鼻甲額竇蝶竇（右側）篩竇蝶竇（左側）上頜竇下鼻甲左側鼻旁竇2.顱側面觀翼點pterionLocomotorSystem23frontalparietaltemporalsphenoidLocomotorSystem24themiddlemeningealarteryLateralskullradiographshowingthevascularmarkingsofthemiddlemeningealarteryLocomotorSystem25frontalboneparietalboneoccipitalbonetemporalbonemastoidprocessstyloidprocesszygomaticprocessexternalauditorymeatus(soundwaves)sphenoidbonecoronalsutureTheSkull–LeftLateralView3.顱頂面觀冠狀縫矢狀縫人字縫頂結節(jié)4.顱后面觀枕外隆凸矢狀縫人字縫頂結節(jié)LocomotorSystem28occipitalboneparietalboneparietalbonemastoidprocessofthetemporalbonemastoidprocessofthetemporalbonesagittalsutureTheSkull–PosteriorView5.顱下面觀LocomotorSystem30occipitalbonetemporalbonetemporalbonesphenoidbone(wedge-shaped)bonesoftheface–inferiorviewbonesoftheskull-inferiorviewLocomotorSystem31occipitalcondylesoccipitalbone(articulatewithvertebraC1)foramenmagnum(transmitsspinalcord)LocomotorSystem32顱底內面顱前窩：雞冠、篩孔顱中窩：垂體窩、視神經管頸動脈溝、破裂孔眶上裂、圓孔、卵圓孔、棘孔、三叉神經壓跡顱后窩：斜坡、枕骨大孔內耳門、頸靜脈孔舌下神經管內口（四）新生兒顱骨的特征腦顱比面顱大得多，為7:1，而成人為3:1顱囟cranialfortanelles：前囟（額囟）、后囟（枕囟）、