80 



TffE CAT. 



[chap. III. 



of the auditory bulloj and the basi-occlpital is the large and con- 

 spicuous. /bra;;? c^^ laccrum jiosterms (11), which transmits the jugular 

 vein and the glosso-pharyngeal, par vagum and spinal accessory 



Fiir. 46.— Sid: 



vii:\v OK THE Cranium, the Lower Jaw and the Hyoidean Arch 



BEING SOMEWHAT DETACHED. 



rr. 



nc. 



an. 



ar. 



h. 



hh. 



c. 



c. 



ch. 



eh. 



f. 



Ivr. 



ij). 



i- 



In. 



111. 



VIS. 



11. 



OS. 



V- 



(Just aliove C anil 7). Ali-siilienoid. 

 Meatus auditorius externus. 

 xVngle of luamUIile. 

 Ascending ramus. 

 Auditory bulla. 

 Basi-hyal. 



(Of cranium) occijiital condyle. 

 (Of mandible) corouoid process. 

 Cerato-hyal. 

 Ei)i-hval. 

 Frontal. 



Horizontal ramus of mandible. 

 Inter-parietal. 

 Malar (or .jvigal). 

 Laclii-jirial. 



Maxilla (its nasal process). 

 , >Iastoid process. 

 Nasal. 



Orbito-splienoid. 

 I'arietal. 



jifi. Palatine. 



pt. Ptei-j'goid. 



2)111. Pre-niaxilla. 



A-. Squamosal. 



s/i. Stylo-liyal. 



so. Supra-occii>ital. 



f^. Cartilage of tympano-hyal. 



th. Pit of tymiiano-liyal. 



y. .\pex of lambdoidal ridge. 



:. Zygoma. 



•J. Infra-orbital foramen. 



I'l. Optic. 



7. Siilienoidal fissure. 



8. Foramen rotundans. 



9. Foramen ovale. 



1-J. Stylo-mastoid foramen. 



1:5. Jlcntal foramina. 



The s]iheuo-palatine foramen is .shown just 

 above, and in front of jxi, close to posterior 

 margin of anterior end of zygoma. 



nerves. This foramen is bounded behind by the exoccipital (pp), 

 which is perforated by the anterior condyloid foramen transmitting 

 the hypoglossal nerve. At the anterior wall of the foramen lacerum 

 posterius is the opening of a very small canal (for the minute 

 internal carotid artery) which runs forwards (between the basi- 

 occipital and basi-sphenoid on one side, and its auditory bulla 

 on the other) to open inside the cranium beside the sella turcica. 



