200 MANUAL OF MODERN FARRIERY 



o. The masseter, or chewing muscle. This muscle occupies 

 the entire cheek of the horse, and is exceedingly powerful, 

 extending from the upper jaw-bone into the rough surface 

 round the angle of the lower one ; which, in conjunction 

 with the temporal muscle, is destined to chew the food and 

 close the mouth. 

 p. The stylo-maxillaris, or styloid, pencil-shaped process of 

 the occiput, extending to the angle of the jaw. Its office is 

 to pull the jaw backwards and open it. 

 y. The maxillary gland, or gland of the lower jaw, with its 



duct. 

 r At this situation the submaxillary artery, a branch of the 

 jugular artery and the parotid duct, pass under and within 

 the angle of the lower jaw, and reappear again at I ; and, 

 ascending the cheek, are distributed in a branching manner 

 over it. 

 s. The subscapnla hyoideus, emanating from under the shoulder- 

 blade to the body of the os hyoides, to draw back that bone. 

 f, w. The sterno maxiilaris, or muscle belonging to the breast- 

 bone and upper jaw, from the cartilage in front of the 

 chest to the angle of the lower jaw, for the purpose 

 of bending the head ; or, if one only act, to bend it on one 

 side. 

 u The levator humeri, or elevator of the shoulder, arising 

 from the tubercle of the occiput, the mastoid, or nipple- 

 shaped process of the temporal bone; and the transverse 

 processes of the four first bones of ihe neck and the liga- 

 ment of the neck, and proceeding to the muscles of the 

 shoulders and the upper bone of the arm, for the purpose 

 of drawing forward the shoulder and arm, or to turn the 

 head and neck ; and, when the two levators act, to depress 

 the head. 

 <). The jugular, or neck-vein. It is from this vein that blood 

 is taken for all diseases in the head, neck, and contiguous 

 parts. 

 X The tendon common to the complexo major, or larger com 

 plicated tendon ; and the splenius, or splint-like tendon, and 

 the mastoid process of the temporal, to hold up the head, 

 or, the muscles on one side alone acting, to turn it. 

 y. The superior portion of the ligament of the neck 



