396 



DIGESTIVE SYSTEM OF THE HOESE 



The blood-supply to the pulp is derived from the alveolar branches of the in- 

 ternal maxillary artery; the nerve-supply comes from branches of the trigeminus. 



The Teeth of the Horsed 



The Permanent Teeth 

 The formula of the permanent teeth of the horse is: 



/ 3 1 



2 ( I - C - 



V 3 1 



:) 



3 or 4 3 ■ 



P M - ) = 40 or 42 



3 3. 



Fig. 334. — Uppeb Teeth of Hohsb, About Fotjb and ^One-half Fig. 335. — Loweb Teeth of Hoese, 



Years Old. Fona Yeabs of Age. 



I', I\ I>, IncisoTs; C, canine; PK P', P', P<, pTemola.Ts; M\M', I', I'-, First and second permanent 



3/3, molars. The eruption of the third incisor is not complete and incisors; ZJrs, third deciduous incisor. The 



the tooth is unworn. cheek teeth are numbered according to 



popular usage 



^ Other figures illustrating the teeth are to be found in the description of the skull. 



