Chap. V. The Anatomy ^/<^ HORSE. 59 



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

 draw the Tongue downwards, but when they a6l feparate- 

 Jy, they draw it obliquely to one Side. 



The fourth Pair, called Ceratogloffiimy becaufe they arife 

 from the Horns of the Os Hyoidcs^ from which reaching 

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

 AvStion is much the fame with that of th^ third Pair. 



The lail Pair are call'd StylogioJJhri^ becaufe theyarile 

 from the Styloiihs^ or Pen-like Procefs of the Temple- 

 bones : They are inferted into the Sides of the Tongue 

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

 Tongue to one Side ; but when conjundtly^ they pull it 

 upwards and inwards. 



The Fork-like Bone of the Tongue, call'd rourPair com- 

 the Os Hyoldesy hath four Pair of^Mufcles, ^^°n to the Os 

 which are common to it and the Tongue. Hyoides an.l 



The firll Pair is call'd Stcrnohyoideum, ^'"^'''' 

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

 'SternoJi^ or Breaft-bone, and taking their Courfe clofe by 

 the Wind>pipe, are inferted into the Root of the Os Hyoides^ 

 which they move downward and backward. 



The Geniohyoidemn is onpofite 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 ic 

 ftreight upwards and a little forwards. 



The third Pair, called the Car achy oideum^ arifeout of the 

 Proceffiii CaracGides^ 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 mto the 

 Horns of the Hyoides. Their Ufe is to pull that Bone ob^ 

 liquely downwards. 



The fourth and lail Pair, called xh^Styloceratohyoidemrr^ 

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

 the Os Hyoides ; they move that Bone obliquely upwards. 



As the Mufcles of the Cheeks and Tongue ferve to tol5 

 the Meat to and again in the Mouth, and thofe of the lower. 

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

 to the Tongue and Os Hyoides^ are principally of Ufe to 

 give the Tongue fuch Motions as forward it into the Gullet 

 when it is fuiiiciently prepared to go into the Stomach. 



The Lcryny:^ or upper part of the Wind- 

 •pipe, has fix pair of Mufcles, and one fmgle T^^^e Mufcles of 

 ■ one. The,firlt two Pair being common to ^'^^ Larynx. 

 "St, and the reft proper* 



Ths 



