NEUROCRANIUM
Pages 184 - 199


§formed by a series of eight bones, four singular bones centered on the midline - frontal,
ethmoidal, sphenoidal and occipital
§two sets of bones occurring as bilateral pairs -temporal and parietal
§a dome-like roof - calvaria
§a floor - cranial base




Frontal bone



§  Squama frontalis
         supraorbital margin
        frontal tuber
        nasal margin
        zygomatic process
        inferior temporal line
§  Orbital part
        supraorbital foramen/notch
        superciliary arch
        glabella
        lacrimal fossa
        trochlear fovea
        ant. et post. ethmoidal for.
§  Nasal part
         frontal sinus










Parietal bone



§  External surface
       temporal lines superior
       temporal lines inferior
       parietal eminence
       parietal foramens
§   Internal surface
        granular foveolae
       middle meningeal grooves
       superior sagittal sulcus

Occipital bone



§  Squama - exter. surface
       external occipital protuberance
       superior nuchal lines
       inferior nuchal lines
       highest nuchal lines
       external occipital crest
§  Squama - inter. surface
       internal occipital protuberance
       superior sagittal sulcus
       transverse sulcus occipital
       internal occipital crest
       cruciform eminence
       cerebral and cerebella markings

§  Condylar part
       occipital condyle
       jugular notch
       hypoglossal canal
       condylar canal
       condylar fossa
§  Basilar part
       clivus
       pharyngeal tubercle




Temporal bone



§  Squama
       zygomatic process
       mandibular fossa
       articular eminence
       glenoid tubercle
       postglenoid tubercle
§  Mastoid part
       mastoid process
       mastoid notch
       styloid process
       stylomastoid foramen
       digastric notch
       groove for occipital artery

§  Petrous part - bone
       apex
       base
       ant., post. and inf. surface
       superior et  inferior borders
       superior petrosal sulcus
       meningeal artery
§  Petrous part - inf. surf.
       carotid canal
       pharyngotympanic canal
       petrosal fossula with tympanic canaliculus
       jugular fossa with mastoid canaliculus
       external opening of cochlear canaliculi

§  Petrous part - ant. surf.
       hiatus and groove for greater petrosal nerve
       hiatus and groove for lesser petrosal nerve
       trigeminal depression
       arcuate eminence
       tegmen tympani
§  Petrous part - post. surf.
       internal acoustic meatus
       groove for superior petrosal sinus
       groove for inferior petrosal sinus
       external opening of vestibular aqueduct
       sigmoid sulcus
       jugular notch




§  Tympanic portion
       external acoustic meatus
       tympanic notch
       squamotympanic fissure
       petrotympanic fissure
       petrosquamous fissure
       tympanomastoid fissure




Sphenoid bone



§Corpus
      sphenoidal crest
      rostrum
      sphenoid sinus
      opening of the sphenoid sinus
      sella turcica
      hypophyseal fossa
      carotic groove
      chiasmatic groove
      dorsum sellae
      posterior clinoid processes
      lingula sphenoidalis

§  Lesser wings
        anterior clinoid process
        optic canal
        superior orbital fissure
§  Greater wings
       foramen rotundum
       foramen ovale
       foramen spinosum
       spine of the sphenoid
       cerebral, temporal,
       infratemporal, maxillary
       and orbital surfaces

§  Pterygoid process
       lateral pterygoid plate
       medial pterygoid plate
       hamulus
       pterygoid fossa
       scaphoid fossa
       pterygoid notch
       pterygoid canal