THE 
VETERINARIAN. 
APRIL, 1829. No. 16. 
ANATOMY OF THE HORSE. 
[Continued from page 85.] 
APPENDAGES TO THE HEAD; 
TO wit, the os hyoides and the teeth. 
THE OS HYOIDES 
Consists of a frame-work of small bones, connected together by 
igament, situated between the larynx and the root of the tongue. 
Division — Into five pieces : body and four horns. 
The body has the precise shape of a spur, consisting of a 
^emi-circular portion, from the middle of the convex side of which 
projects a straight part, corresponding to the neck of the spur: 
:his (latter) part, also called the appendix , is surrounded by the 
root of the tongue, to the fleshy fibres of which both its sides and 
3xtremity afford original attachment. The branches , or sides of 
the spur, are directed backwards, embracing between them the 
superior border of the thyroid cartilage. The curved party from 
which the branches and neck spring, is broader and thicker than 
elsewhere, and has, laterally, two small articulatory knots with 
which the short horns are connected. 
The horns are four in number—two long, and two short. 
The short , or inferior horns , ascend obliquely from their articu¬ 
latory connexions with the body, and terminate in two oblong 
smooth extremities, which form similar joint-like connexions with 
the long horns. They are flattened on the sides, and their ante¬ 
rior borders are sharper than their posterior. They give attach¬ 
ment to a pair of the muscles of the tongue. — The long , or superior 
horns, constitute two long, flattened, thin bones, extending back¬ 
wards, in a horizontal direction, from the summits of the inferior 
Vol. II.—No. 16. R 
