230 



BOVINE PATHOLOGY. 



externus may be divided into several superposed layers, 

 and anteriorly receives a tendon of Panniculus, represent- 

 ing Sterno-maxillaris. Digastricus has but one belly, and 

 runs directly from the occipital styloid process to the in- 

 ferior maxilla. Stylo-maxillaris is absent. The temporo- 

 maxillary joint is arranged to allow of very free lateral 

 movement, the glenoid surface being convex. In mastica- 

 tion and remastication the jaw is moved for a number of 

 times to one side, and then the action is reversed. Thus, 

 the right and left molar series are periodically, but not 

 alternately, brought into use. 



'' Deopping the Cud" takes place in certain diseases of 

 the mouth where mastication is painful, but is also one of 

 the symptoms of certain subacute forms of indigestion 

 dependent upon bad, bulky, and innutritions food. In 

 such cases the animal is unthrifty, with irregular bowels, 

 stciring coat, and depraved appetite. A cathartic dose, 

 with change of diet, will generally effectually remove 

 this irregularity. 



Salivary Olands. — The parotids are smaller propor- 



FiG. 40. — Salivary glands with their ducts. d. Parotid; a, its duct. 

 0. Prohes in submaxillary ducts, e. Sublinguals, b. Termination of 

 parotid duct. (Simonds.) 



tionally than in the horse, but this is compensated for by 

 the large size of the inferior buccal glands. They secrete 



