The Anatomy of a HORSE* 107 



which Farriers fometimes open in Fevers, ^c, the Plate- 

 veins, the Shank-veins, and Shackle-veins, as alfo the 

 Veins of the Cornet and Toe, which are ufually opened in 

 Difeafes of the Legs and Feet. 



The Cava afcendens^ or the great afcend- q, ^^ ,. 

 ing Vein, which anfwers to the great de- c^va. " ^*^^ 

 fcending Artery, receives alfo all thofe 

 Branches of Veins which return the Blood from molt 

 Parts of the Lower Belly, viz. the Mefcnteria from the 

 Mefentery, the Porta from the Liver, the Emulgents 

 from the Kidneys, the Spermatick Veins from the Parts 



i of Generation in both Sexes. And after it divides itfelf, 

 as the Artery, into the internal and external IliackSy it 

 receives feveral Branches. Into the Internal j^^ j^.. ., ^ 

 open the Hypogaftrlcb^ by which the Blood ^;^^^ ^ '*' ** 

 is returned from the Matrix^ the Bladder, 

 and flreight Gut ; and into the External open the Ep'igaf- 

 trickSy with Blood from the Piritonaumy and external 

 Parts of the Lower Belly ; and into the Epiga/iricks open 

 the Cruralsy which receive all the Blood that flows from 

 the extreme Parts ; for into them open thofe Veins, im- 

 properly called by Farriers the Kidney-veins ; as alfo the 

 Spavin-veins, the Flaul' and Spur-veins^ with that of the 

 Rump, called the Tale-vein. 



Thefe Things being prcmifed, it will be eafy for any one 



' to form an Idea of the Diftribution of the Blood into all 

 Parts of <he Body ; efpecially if it be far- cri xr • • 

 ther confidered, that the VelTels in which of tie Par tT 

 the Blood flows, are divided and fubdivided 

 into an infinite Number of Branches ; and that even all 

 the Parts of the Body, whether thofe that are hard, or 

 thofe that are denominated foft Parts, feem to be no other 

 than fo pany infinitely fmall Tubes varioufly modified 

 and combined together j for by this Means the whole Body 



! is filled with Blood and other nutritious Juices, and re- 



' reives its Noyrifliment from Blood, as the Blood itfelf is 

 recruited and repaired by the Aliment. And from the 

 fame Confideration it is alfo evident, that no Animal 

 Body can be fuftained without the Requifites of Food and 

 Reft, by Reafon the Strudure of all Animal Bodies is of 

 this Sort ; that is to fay, all are made up of Fibres, and 

 thefe Fibres are again made up of thofe that are^lcfs, and 

 foon //7 infinitum, l^hey muft therefore, becaufe of the 

 Jjifiniiy of Pores and lutcltines that are in them, require 



conllant 



