THE 
TETERINARIAN. 
VOL. I. 
JULY, 1828. 
No.. 7. 
ANATOMY OF THE HORSE. 
(Continued from page 190.) 
ANTERIOR MAXILLARY BONES. (OSSA MAXILLARIA 
ANTERIORA.) 
Situation. —Supero-anterior and antero-lateral parts of the 
face. 
Form. —Irregular; consisting of abroad, thick portion or 
base, turned fomards, from which is sent off a thin flexible 
plate; and a narrow, elongated, tapering portion, turned back¬ 
wards. 
Division .—Into three surfaces and three borders. 
Surfaces. — The superior or nasal surface is smooth, con¬ 
vex, and oblong; more extensive externally than internally; 
and free from all connexion, it forming one side of the nasal 
space, in correspondence with its fellow. Outwardly, it affords 
attachment to the nasalis brevis labii superioris; inwardly, it is 
invested by the pituitary membrane. The inferior or palatine 
surface is vaulted, it contributing to the formation of the palate: 
within it, of an oval form, is the interdental space, which is* 
occupied by two thin flexible plates, the palatine processes 
denticulating along the sides with each other. In the side of 
the bone is a deep hollow, for the reception of that portion of the 
superior maxillary bone which holds the tusk; and the remain¬ 
der of the surface, posteriorly, is articulated with the same. 
The anterior or labial surface is broad, smooth, and convex, 
and gives attachment to the depressor labii superioris, the gums, 
and the membranous and cellular tissue entering into the com¬ 
position of the upper lip. 
Borders. — The anterior border is broad and curved, and is 
composed of two lamin 2 e, formed apart and divided by five 
VoL. I.— No. 7. 2 c 
