CHAPTER II 



EEGIONAL ANATOMY 



Considered from a zoological standpoint, the foot of the 

 horse will include all those parts from the knee and hock 

 downwards. For the purposes of this treatise, however, the 

 word foot will be used in its more popular sense, and will 

 refer solely to those portions of the digit contained within 

 the hoof. When, in this chapter on regional anatomy, or 

 elsewhere, the descriptive matter or the illustrations exceed 

 that limit, it w^ill be with the object of observing the 

 relationship between the parts we are concerned with and 

 adjoining structures. 



Taking the limit we have set, and enumerating the parts 

 within the hoof from within outwards, we find them as 

 follows : 



A. The Bones. — The lower portion of the second phalanx 

 or 08 coronae ; the third phalanx, os pedis, or coffin bone ; 

 and the navicular or shuttle bone. 



B. The Ligaments. — The ligaments binding the articu- 

 lation. 



C. The Tendons. — The terminal portions of the extensor 

 pedis and the flexor perforans. 



D. The Arteries. 



E. The Veins. 



F. The Nerves. 



G. The Complementary Apparatus of the Os Pedis. 

 H. The Keratogenous Membrane. 



I. The Hoof. 



