THE VERTEBRAL COLUMN 33 
THE VERTEBRAL COLUMN 
The vertebral formula of the horse is C7TysLgSsCyi5-21- 
Anterior artic- 
ular process 
of axis 
Spinous proc- 
ess of axts 
Transverse 
process of axis 
Fic. 7—Cerrvicat VERTEBR® OF Horse; Dorsat VIEW. 
a, Articular processes; 6, transverse processes; 1, 
dorsal arch of atlas; 2, wing of atlas; 3, intervertebral 
foramen of atlas; 4, alar foramen of atlas; 5, foramen 
transversarium of atlas; 6, dens of axis; 7, intervertebral 
foramen of axis; 8, foramen transversarium of axis; 9, 
Spinous processes. 
Fic. 8.—Cervicat VERTEBR® OF Horse; VENTRAL 
VIEw. 
a, Transverse processes; 1, ventral tubercle of atlas; 
2, anterior articular cavities of atlas; 3, fossa atlantis; 
4, alar foramen; 5, foramen transversarium; 6, ventral 
spines. 
