2l6 MANUAL OF MODERN FARRIERV 



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 naviciUare. 



c. The lower pastern, or os coronce. 



d. The upper pastern, or os siiffj^aginis. 



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 pro- 

 ceed 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. 



a. The sole of the foot. 



b. The horny crust. 



c. The fleshy, or sensible laminae, covering the coffin bone, the 



horny crust being removed. 



d. The posterior lateral ligaments. 



e. The internal, or sensible frog. 



/. The branch of the nerve which supplies the fore part of the 



foot with feeling. 

 g. The lower part of the vein before the artery. 

 //. The same vein spreading over the pastern. 

 I. The continuation of the nerve, s^ and proceeding downward 

 to supply the back portion of the foot with feeling. 



