THE SKULL AND THE BONES OF THE SKULL 



Groove of the middle temporal artery 



Sulcus arteriae temporalis mediae 



Parietal bordler 

 Margo pariet jails 



Sqnamons portion of the 

 temporal bone 



Squama temporalis 



Temporal surface -^-55- 



Notch of Rivinus 



Incisura tympanica (Rivini) 



Suprameatal spine (var.) 

 Spma suprameatum (var.) 



Supramastoid crest, or postauricular ridge 



,-Lmea temporalis inferior 

 Parietal notch Incisura parietalis 



External auditory aperture 

 / Porus acusticus externus 



Mastoicl portion 

 / Pars mastoidea 



Occipital border 



Margo occipitalis 



Squamosomastoid suture (var. 

 "Sutura squamosomastoidea (var.) 



. Mastoid foramen 

 Foramen mastoideum 



-Tympanomastoid fissure 



Fissura tympanomastoidea 



. Digastric fossa Incisura mastoidea 

 Mastoid process Processus mastoideus 



Glaserian fissure 



Fissura petrotympanica (Glaseri) 



! , Tympanic plate 

 " Pars tympanica 

 Styloid process Processus styloideus 



1 What is called the mandibular fossa by Toldt is the posteror non-articular portion of the glenoid fossa 

 (separated from the articular portion by the Glaserian fissure). Its floor is formed by the tympanic plate, 

 and it lodges a portion of the parotid gland. TR. 



FIG. 127. THE LEFT TEMPORAL BONE SEEN FROM THE OUTER SIDE (TEMPORAL SURFACE). 



Squamous portion of the temporal bone 



Squama temporalis 



Sphenoidal border 



Zygoma 



Processus zygomaticus 



Articular eminence _. 

 Tuberculum articulare 



Glenoid fossa 

 Fovea articularis 



Petrous portion 



Pars petrosa (pyramis) 



Sp 

 M 



argo sphenoidali 



Caroticotympanic canaliculi , 

 Canaliculi caroticotympanici 

 Carotid canal 

 Canalis caroticus!> 



Inferior petrosal sulcus 

 Sulcus petrosus inferior 

 Depression for the petrosal ganglion of the 



glossophat yngeal nerve- roMob petrosa 

 Inferior orifice of tympanic canaliculus, canal 

 for tympanic branch of glossopharyngeal 



(JaCObaOn'S nerve) Apertura inf. canaliculi tympanicl 



External orifice of the aqueduct of the cochlea 



Apertura externa canaliculi cochleae 



Groove for the auricular branch of the pneumo- 



gastriC (Arnold's nerve) Sulcus canaliculi mastoidei 



Canaliculus for the auricular branch of the 



pneumogastric (Arnold's nerve) 



Canaliculus mastoideus 



Jugular fossa 

 Fossa jugularis 



Occipital border 



Margo occipitalis 



Zygoma 



Processus zygomaticus 



Articular eminence 



Tuberculum articulare 



- Glenoid fossa Facies articularis 

 Glaserian fissure 



" Fissura petrotympanica (Glaseri) 

 Tympanic plate Pars tympanica 

 Styloid process Processus styloideus 



External auditory aperture 



Porus acusticus externus 

 Stylomastoid foramen 

 Foramen stylomastoideum 

 Mastoid process 



Processus mastoideus 

 Digastric fossa 



~ Incisura mastoidea 

 _ Occipital groove 



Sulcus arteriae occipitalis 



Mastoid portion 



Pars mastoidea 



ft 



FIG. 128. THE LEFT TEMPORAL BONE SEEN FROM BELOW (EXTERNAL BASAL SURFACE). 



Os temporale The temporal bone. 



