Chap. II. The Anatomy <?//^HORSE. 9 



Orifice of the Stomach ; and that whereby it_ difcharges 

 ilfelf into the Duodenum^ its right or lower Orifice, 



The Stomach is round, and fomewhat cj-j^g stomach. 

 long, refembling a Bagpipe, but more capa- 

 cious on the left Side than the right ; its Magnitude is, 

 generally fpeaking, more or \ds^ according to the Size of 

 the Horfe. It is alfo compofed of three Cafes, the outer- 

 moft of which leenis to rife from the Perltonceim j the 

 fecond is mufcular and fiefliy ; and the laft a Continua- 

 tion of the innermoft Coat of the Gullet. 



It has Arteries from the Caliacal Branch j^^ veffeh. 



of the Aortd., and Veins from the SpIenUk^ -^ 



and the Gajlr'uks^ a Vein common to its left Side and 



the Caul, and one common to the Caul and the right Side 



from the Melenter'uki; and laftly, the Pyloria^ which 



comes from the Porta. 



It has Branches from the Recurrent r, ., ,,^, 

 _, , • 1 1 • 1 if^ Nerves. 



Iverves, which oemg exceeding numerous, 



are the Occalions of its being fo very fufceptible of Hun* 



ger, and all other Senlations. 



The Ufe of the Stomach is to conco(n: , rr^ 

 and digeft the Aliment, fo as to render it fit 

 for Nourifhment ; and this is perform'd chiefly by its 

 mufcular Motion, which is manifeft from its Structure, 

 and the Power it has of contracting itfelf into thofe Ruga, 

 which we difcover in it when it is empty. 



After the Stomach come the Guts, which, <tl n . 



according to Mr. Smpe's Computation, are 



in number fix, to wit, the fmall Gut, the Ccccum or blind 



Gut, the three Colons., and the ftreight Gut. 



The fmall Gut (which in a Man is divid- err r u r- , 

 . . ^L • u /-» J cv • The fmall Gut. 



ed mto three, to wit, the Duodenuniy jeju- ■' 



num, and llion, from its feveral Circumvolutions) is in a 



Horfe reckon'd to be about 2 6 Yards in length ; and is in 



all its Turnings faflen'd to the Mefentery, The Stomach 



empties its Aliment into this Gut, which is furnifh'd with 



an infinite number of milky Veflels, call'd La^eals^ that 



receive the finer Portion of the Aliment, which being con- 



vey'd by thefe little Conduits acrofs the Mefentery., to one 



common Receptacle, afcend upwards along the Spine, 



thro' a pretty large Chanel, which is call'd the Thoraick 



2)u£i ; and from thence into the Veins, and is incorporated 



with the Blood. The coarfer Part of the Food, by a peri- 



ftaltick, or vermicular Motion^ v/jiich is common to -^U 



the 



