Chap. V. The Anatomy <?/"^2HORSE. 5^ 



the Tongue to the Jaws. When thefe aft together, they 

 draw the Tongue do>^n wards, but when they act feparate- 

 ly, they draw it obliquely to one Side. 



The fourth Pair, called CeratoglojJ'utn^ becaufe they arife 

 from the Horns of the Os Hyoides^ from which reaching 

 to the Sides of the Tongue, they are there infertcd. Their 

 Aflion is much the fame with that of the third Pair. 



The laft Pair are call'd Styloglojfum^ becaufe they arife 

 from the Styloides, or Pen-like Procefs of the Temple- 

 |Dones : They are inferted into the Sides of the Tongue 

 about its Middle. When thefe adt fingly, they draw the 

 Tongue to one Side ; but when conjundly, they' pull it 

 upwards and inwards. 



The Fork-hke Bone of the Tongue, call'd Four Pair com- 

 the Os Hyoides, hath four Pair of Mufcles, ^^°» /« '^^ Os 

 which are common to it and the Tongue. Hyoides ««i 



The firft Pair is call'd Sternohyoideum, "^""S"'' 

 hecaufe they fpring from the Infide of the upper part of the 

 .S/^rw?/, or Breall-bone, and taking their Courfe clofe by 

 the Wind-pipe, are inferted into the Root ot the Os Hyoides^ 

 which they move downward and backward. 



The Gcniohyoideum is oppofite to the former, arifingfrom 

 the Infide of the fore- part to the lower Jaw, and is inferted 

 into the middle Part of the Bone Hyoides^ which draws i: 

 ■ftreight upwards and a little forwards. 



The third Pair, called the Carcchyoideum^ arife out of the 

 Prcce[fus Cardcoides, at the upper End of the Shoulder- 

 blade, and run obliquely upwards under the firft Pair of 

 Mufcles of the Head, and are at length inferted into the 

 Horns of the Hycides. Their Ufe is to pull that Bone ob- 

 liquely downwards. 



The fourth and laft Pair, called the Styloceratohyoideuniy 

 arife from the Styloid Procefs, and alfo end in the Horns of 

 the Os Hyoides ; they moA'e that Bone obliquely upwards. 



As the Mufcles of the Cheeks and Tongue ferve to tofs 

 The Meat to and again in the Mourh, and thofe of the lower 

 Jaw help to grind it ; fo thefe Mufcles, which are common 

 to the Tcngue and Os Hyoides, are principally of lJ(e to 

 give the Tongue fuch Motions as forward it into the Gullet 

 ■when it is fufficiently prepared to go into theStohiach. 



The Ldryns\ or upper part of the Wind- 

 pipe, hashx pair of Mufcles, and one lingle TLe Mu/des of 

 one. The firft two Pair being common to ^^^ Larynx. 

 it, and the reft proper. 



Til? 



