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-hone 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. 
q. 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 l; and, 
ascending the cheek, are distributed in a branching manner 
over it. 
s. The subscapula hyoideus, emanating from under the shoulder- 
blade to the body of the os hyoides , to draw back that bone. 
t, w. The sterno maxillaris, 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 the 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. 
v. 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. 
