-> 



urn-lit, :tt tin- iiiiicT side i>t' tin- principal intero 



I'laiitar a: ' ,ir the tarsus, ;: v.-ry hup- hnuich from the 



c:i<l then traversed tli<- <-u!> >i<li> -c , >iil ranul, to form 



tin.- lar^'st root of the anterior tibiul vi-in. 



8. Veins of the D'ujital Rcyion. 



As these resemble, in every respect, those belonging to the anterior 

 limb, the same description will suffiee for both (see page 013). 



DIKFKllKNTIAL CHARACTERS IN THE VEINS OF OTHKH THAN SOLII'EP ANIMALS. 



It does not come withiii our plan to give a complete history of the von >n- >y.-t-ni <>f 



these animals, because of the small utility of such a >tndy. To remain faithful t tin 



in vii-\v. \vi- confine ourselves to the indication of tin- .-p Hal characters of tin; 



\i-iii- mi \\iiicli bleeding is usually practised, and UIOM- which may bj interesting in a 



; eal point of view, as the digital veins of Ruminants. 



A. Astii i AK VKIN OF THE EYE. Thi.- vessel is n-inarkalili- fur its larire voliini.- in 

 tin- >'//"/' ,- and as it is well defined beneath the skin, in consequence of tie- fincii' 

 that nii-niln-ane, it is more frequently seltwted for phlel>oioniy than in otln-r anim ils. 



n. .)n;i : AK VEIN. Very large in all animals, Hnd particularly in the Ox, this \e n 

 n-iiee given to it when it is proposed to abstract a certain quantity of 

 bl'Mid t'roin ' 



In all niHi-s.oliped animals there is found an accessory jugular, which sometimes > 

 in tin- Horse, hut is nuu-h le.-s in size, alongside the common carotid artery. It i 

 from the occipital vein, an 1, therefore, measures the whole length of the neck. Sometime 

 it> diam> ter is small; hut it is often so large as to receive a very notable qumti!y of 

 blood from the principal jugular, when compression is applied to the latter to favour the 

 flow of blood after opening it : a circumstance which explains the difficulty soniotim > 

 experience.] in obtaining a voluminous jet of blood. 



C. ABDOMINAL Si m -i TAXKOI s VEIN. In the Bovine species, this vessel has an 

 enormous volume. e-p,-cially in the milch-cow, in contradistinction to the subcutan ou- 

 ic vein, which is always very narrow. 



This vein is prolonged forward on the wall of the abdomen, to nearly the xiphoid 

 cartilage, where it passes through to join the internal thoracic vein. 1 Itehind, it is 

 f..riii<-<l l>y multiple branches, which anastomose with each other, or with tl.o.-e of tin- 

 opposite vein, and are in c.iinmunieution with the proper evtrrnal jni'lic veins. 



I). K II.KXAI. SAI-HKXA VEIN. This is alway smaller than in fcolipeds, and is rarely 



Volll. 



.SAL SAI ii \ This vessel is, on the contrary, more voluminous than 



in th- . 1 at th'- same lime more superficial ; consequently, it is more f ivoiirably 



ritnat'-.! i-ir phlfh-.tomy. a- well in /'/./ nnd the Carnivora, as in SumfmnUt. It I 

 fn>m the union, in ihe hollow of the hock, of the two principal roots furnished by the 

 metiitar.-al . 



1 . VI.IN> OK TIIK I'OSTEUIOR FOOT IN THE Ox. As in the Horse, they eoniinenc. in 



'Hiiijitwtl tii-licurl: of the digital region, which is double, like the reui'':i 

 <i. Thr. e ili'tjital veint leave tlii- r< ticuliim : 1, A median or anterior one, arising by 

 two r.x>ts from the anterior part of each network, passing between the two digit-, and 

 joining the anterior superficial metutarsal vein above the fetlock ; '2, Two lateral*, com- 

 municating with one another, behind, by a transverse una-t<>nioMs which receives sev ral 

 veiuile-i t'nuii th'- iingneal plexus, and with the anterior vein by an interdigital branch, 

 united i.y an an-h in front of the ili-xor tendons, above tlie sesamoid gr 



!. 'I'll- - digital veins are continued by five mttalartal veint: two deep and one 

 superficial anterior, and two f<i.-t- rinr. 



The two <{ ], anterior vein* are small vessels which accompany th- c. l!at. r.il uil.-ry 

 of the c union, which is placed between them. They arise in the intcnligital sjuie. 



r digital vein, communicating, by the inferior m- tatarsid foramen, with the 

 etanioid arch, sending off on their way transverse anastomooed, and being continued 



by the two anterior tibial veins, whoso roots they constitute. 

 r tuperfieial vein u very voluminous. It proceeds from the Mttmoid arch, 



1 The <]. mi,.'- through which these vessels pass in the abdominal parietc, aru 



nm-'iilv named tin /-.'//,- fountain* or doort. 



