4 
THE 
VETERINARIAN. 
VOL. I. 
OCTOBER, 1828. 
No. 10. 
ANATOMY OF THE HORSE. 
(Continued from page 309.) 
‘ INTERNAL PARTS; 
Comprehending the Cavities of the Craniumy Orbity Nosey and 
Month, 
• I. — CAyiTY OF THE CRANIUM. 
CONSTRUCTED for the lodgement of the brain with its ap¬ 
pendages ; it is in form ovoid, flattened inferiorly, broader ante¬ 
riorly than posteriorly, its antero-posterior or long diameter mea¬ 
sures about seven inches ; its transverse or lateral diameter, about 
four inches; its vertical or perpendicular diameter, about three and 
a half inches : at the same time it is to be observed, that, although 
the general figure of the cavity is the same, it dimensions may and 
do vaiy in diff erent heads. The eight bones composing the cranium 
all present internally surfaces more or less concave, which, united, 
form the cavity under consideration ; hence it is that the interior is 
not regular or unifomi, but presents to view different hollows, 
which are adapted to distinct prominences of the cerebral mass. 
DIVISION of the interior surface into roof and base of the 
cranium: — 
The roof is formed by the frontal, parietal, and occipital 
bones : its superficies is larger than the extent of the base, and it 
is without any apparently defective places, observable in the 
latter. It presents—1st, on the mesian line, from front to back, 
the sagittal groovey for the longitudinal sinus, formed by the 
frontal and parietal crestSy crossed towards the front by the co¬ 
ronal suturey and bounded posteriorly by the parietal protuberancey 
to which is attached the tentorium, and behind which is the occi- 
VoL. I.—No. 10. 2 s 
