rilK COMMON CAROTID ARTEL'll >'. 



Snjf r/K-i'tll< mpirnl artery. After n brief course behind the temporo-maxillnry arti'-nl.i- 



iis VC.-.M-I bifurcates: its jxt.^terior ur <M<r/>->i/<ir branch anastomosing with u division 



rior auricular, but nut before it has t-ent ramuscnies to the interior of the 



e mcha, and furnished some BUttOultMrntaaeotU twigs. The other, the anterior or tenij /-// 



:i. gli les beneath the ft]> Hieurosis uf the tclll]>or.l] mtl-cle, al> >Ve the Upper 1.. 



nf tlie /> '_'"in .!! arch, and winds upwards and inwards aroun 1 the outline of the orliit, 

 t" t'-rminate "ii the face by anastomosing ramu-cnles. i ither with the infra-orbit d branch 

 of the su|x-rior dental artery, or with the. fa-ial. In its subapunciirotic coin 

 divisions t" tlii- temporal muscle. Above the orbital areh.it emits several .-up- rli"i .1 



iing an 1 internal twin's, one of the principal of which communicated by ramu 

 with the po.-tcrior auricular artery, the auricular branch of the superticial I'-m)* >r.il. and 

 with the Qomolognus minuscules from the opjxi.site side. 



Intirinil nt'i.1 HI'i rij n rt> nj. The course pursued by this vessel is similar to thnt it 

 follows in the Horse. After describing an 8 curvature between the endyle of the 

 maxillary bone and external pteryguid muscle, it traverses the suK-phenoidal canal, 

 mid passes outside the internal pterygoid towards the maxillary hiatus, where it is con- 

 tinned by the tit/" rim- il-ntnl artery. 



a. The following are the principal collateral branches emitted by this vessel : 



1. The ,'nfi rif ditital nrlcry. 



2. The <ii<i> yix/< //</ t> nt/x,nil artery, which furnishes a nuuseteric branch thnt 

 traverses the sigraoid notch of the maxillary bone to enter the mnsseter muscle. 



\ tine li/iiijxinii- liriij. 



i !>. >///,. Ho-tpfaotu <irli nj. almost entirely destined to the formation of the plexus 

 of the ct re'Srul an 



I ]ili-ry;/i>i<l itrlrries, 



(!. The i>iilitluilinir urtt ry, which, before entering the ethnioidal fossa by the orbital 

 foramen, s^ivi s, imlt'itondently of tlie branches noted in Solipeds except the supra-orln'ful, 

 whieh is absent a fasciculus of particular branches. These penetrate the cranium by the 

 ten at .-phenoidal fissure, accompanying the motor and sensory nerves of the eye, to join 

 the internal carotid and spheno-spimms arteries. 



7. I !.' i!" j> n/ittrior temporal artery. 



S. A ttapliylin artery, more voluminous than that in the Horse. 



it. The fHtlatine artery. 



1 ". A buccal and an alveolar artery, whose principal divisions enter Duvernoy's gland. 



//. 'I'll-- superior dental artery, which terminates the internal maxillary, and furnishes 

 an orbital and an infra-orbital branch, as in Solipeds. The latter, remarkable for its 

 volume, . m, T_'- s from the supermaxillary canal with the infra-orbital nerves, to join the 

 divisions of the external maxillary artery on the face, and in the tissue of the upper lip. 



2. Carotid Arteries in tlte Pig. 



There is nothing particular to notice regarding the course of th'-se vessels, which we 



know arUe separately from the brachio-cephalic trunk. 



/ In tta distribution, it nreaUjnMmblai the same \v-s< 1 in tlie II 

 and Do;:, [to mcwt important bttoehei an tMfcUovinc: i, A \.-r\ small / /n ; //-.i</,- ,irt<m. 



anastomobinu' witli the vertebral; 2, A branch which mounts into tin- mn> les 1 the 



pp-seiiting the mantoid artery; 3, Several occipitil twi^s. whieh p.ivs with the 



by the anterior foramen of the atW This artery is exju-nded in a 



complete manner in the mus'-lca of the neck, and without sending a cerebro -spinal braneh 



to the interior of the spinal canal. 



JntTiKil ,;ii-"!xl iirl'nj Alter furni-.liin-_' a l.iri;e ineiiiu-e.il : it. ry, this vessel enters 

 the cranium by the jmaterior lacerated t .rame-i, and then- divides to form a nfteatt 

 mliiiinil'l'; analogous to that of Humiiiants, and of \\hieh n description will be 



::er. The cerebral arterus arising from thi.-^ n'^nu dill'er but little from tin we of 

 SolijM-il.- : tie -e ar :h. |. .-t'-ri >r cerebral arteries, which give riae to the basilar trunk, 



_'inat" tiie MM- .iaii spinal artery. 



Kfd null r,n;,tlil urt> ry.'l'liia artery is seen to pass between the pteryiroid mns,-lca 

 and the brai.eh of this maxillary, in dexolbiltg several intle.uoim. mid arrixi < in the 

 nnxillary hiatus, \\ith"iit exhibiting in its course any bensible dUtinctinii ltw.-en the 

 i "i-an.ti d. ppiperly called, ami its contimiati <n. the internal maxillary . 



A moii_' tli- br.iliehes it supplies, we notice : 



]. The liiujual artery, more voluminous, perh .]>-. than in the nther animals. 



.1 h analo^'oif, in its origin at least, t" the glos.-o-facial arU-ry "f th-- Horse, 

 an 1 \\hich di.-tribnti s its ramns'-nl.'.-; in tin- intermaxillary Hpaei-, and pariieularly to the 

 iy and lymph itie -_'l:iM.|~. 



