x6 NAMES OF EXTERNAL PARTS AND DEFINITIONS, 



The mttzzle is the lower end of the head, and includes 

 the nostrils, upper (a) and lower lip {e), and the bones and 

 teeth covered by them. 



The bars of the mouth are the bare portions of the gums 

 of the lower jaw which lie on each side, between the back 

 teeth and the tushes, or the place usually occupied by the 

 tushes. 



The chin-groove {/) is just under the bars of the mouth. 



Fig. 10.— External Parts of Horse. 



It is the smooth and rounded under part of the lower jaw, in 

 which the curb chain should rest when a curb bit is used. 



The angles of the lower jaw (g) are the bony angles 

 between which the upper end of the wind-pipe lies. 



The branches of the lower jaw run from the chin»groove 

 to the angles of the lower jaw. 



The occipital crest is the bony prominence which con- 

 stitutes the top of the head, and which more or less rises 

 between the ears. It is particularly high in the head shown 

 in Fig. 254. 



