56 



SCIENTIFIC HORSESHOEING. 



B, Continuation of the fibrous reticulum, 

 for the support of the vessels and leafy tissue on 

 the coffin-bone. 



C, Tendon of the front extensor of the foot 

 going on to the coffin-bone. 



E, Rear margin of sesamoid ligament. 

 P, Periosteum of the cannon- and pastern- 

 bones. 



Fig. 9. internal structures of the region of 



THE left fore FOOT, AS SEEN FROiM THE INNER SIDE. 



The digital arteries and veins course almost immediately be- 

 neath the skin. Descending from above the fetlock joint they 

 follow the course of the flexor tendon and throw out innumerable 

 twigs and divergant ramifications to supply the surfaces, as well 

 :as the deeper tissue substances of the foot. Those shown in this 

 plate are the perpendicular artery, circumflex coronar}-, artery 

 of the plantar cushion, preplantar ungual, venous network of the 

 laminal tissue, coronary plexus, and the deep cartilaginous layer 

 — all flanked by the plantar nerve, which interlaces them with 

 numerous filaments. 



