THE FOOT 



hyaline cartilage, structures that have, with 

 advancing years and concussion, an inherent 

 tendency to undergo calcification, in other 

 words to develop into side-bones. This remark 

 applies to both the fore and hind feet, though 

 no importance is attachable thereto, in con- 

 nection with the last named. In continuing 

 the description of the pedal bone, it must be 

 mentioned that its upper surface is purely 

 articular, forming a joint with the second 

 phalanx, or short pastern bone. This is the 

 corono-pedal articulation, and it is entirely 

 embedded within the hoof. There is a central 

 prominence, or small peak-like projection, in 

 front of the articular surface of the pedal bone. 

 This is the "pyramidal" process, and it serves 

 for the attachment of the extensor-pedis tendon, 

 or great extensor of the limb. The principal 

 arteries supplying the foot are the plantar^ 

 and the preplantar. There is a small facet at 

 the back of the articular surface of the 

 pedal bone, which serves for articulation with 

 another small bone, the navictdar bone, which, 

 by the way, is a small ship-shape bone placed 

 at the back of the corono-pedal articulation, 



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