Os occipital (후두골)

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Forms the nuchall wall of the skull and can dividied into pars basilaris, lateralis, squama

 

 

 

for. magnum : large foramen for medulla oblongata

tuberculum nuchae(Ca,Su) : tubercle on the dorsolateral border of the for. magnum

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pars basilaris

tuberculum nuchae(Ca) : small median tubercle on ventral surface

tuberculum musculare : paramedian tubercle for flexor of head and neck

fossa cranii caudalis : contains impressio pontina, impressio medullaris(impression for pons and MO)

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pars lateralis

condyles occipital : for articulation with atlas

proc. jugularis : lateral to for. jugularis corressponding to proc. transverse of vertebrae

proc. paracondylaris : for muscular attachment of m. digastricus

fossa condylaris ventralis/dorsalis : depression venral/dorsal to condyles occipitalis

canalis n. hypoglossi : canal for n. hypoglosal

canalis condylaris(Ca,Bo) : canal for sinus condylaris

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pars squama : dorsal part of os occipital

protuberantia occipitali externa(Eq,Bo,Ca) : median protuberance on external surface of squama, In Su, replace to fossa squama occipitalis

crista occipitalis externa : crest from protuberantia occipitalis externa to for. magnum

crista nuchae(Eq, Ca, Su) : transverse crest on external surface

linea nuchae(Bo) : transverse line on the external surface

crista sagittalis externa(Eq,Ca) : median sagittal crest on the dorsal surface of the squama

linea temporalis : the border of the fossa temporalis

protuberantia occipitalis interna(Bo,SU)

proc. tentoricus(Eq,Ca) : part of tentorium cerebelli osseum

impression verminalis : impression by vermis cerebelli

sinus frontalis caudalis(Bo,Su) : excavates the squama in Su/Ru

- septum sinnum frontalium

for. magnum : large foramen for medulla oblongata

tuberculum nuchae(Ca,Su) : tubercle on the dorsolateral border of the for. magnum

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다음 : [수의해부학] 2. Os sphenoidale

[수의해부학] 2. Os sphenoidale

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