NERVE, VEIN, AND ARTERY OF THE PASTERN AND FOOT. 245 
which, from taking an oblique direction, it forms an obtuse 
angle. It is connected with the cannon and coronet hones, 
and with the two sesarnoids. 
e. The sesamoid bones, or os sesamoidea. These are situated at 
the back of the articulation formed by the pastern and cannon- 
bones. They are articulated only with the large metacarpal 
bone, and are connected both with that and the pastern-bone. 
FRONT VIEW OF THE PASTERN. 
PLATE VI. Figs. 4, 5, and 6. 
We have described some of the injuries to which the 
fetlock is liable, page 123. 
a . The coffin-bone, or os pedis. The outline of its form is semi¬ 
lunar, convex before and above, concave below and behind 
b. The navicular-bone, or os naviculare. 
c. The lower pastern, or os coronce. 
d. The upper pastern, or os suffraginis. 
NERVE, VEIN, AND ARTERY OF THE PASTERN 
AND FOOT. 
PLATE VI. Fig. 7. 
This gives a representation of the nerve on the inside of 
the foot as it approaches the fetlock and passes over the 
pastern. It will be noticed that branches are given off 
above the fetlock, which proceed to the fore part of the 
foot and give it feeling. The continuation of the nerve 
under the fetlock principally supplies the quarters and 
hinder parts of the foot. 
This figure is intended to show the parts and situation of 
the vein, artery, and nerve, which has been operated upon 
during diseases of the foot, to alleviate the pain the animal 
suffers under some of these affections. This is termed 
neurotomy, or cutting of the nerve. 
