42 



HORSESHOEING. 



through the notch in the wdng of the os pedis, then along the 

 preplantar fissure, splitting up into many branches, which spread 

 over and penetrate the porous surface of the os pedis. The 



Fig. 25. 



Side view of forefoot, showing blood-vessels and nerves: o, digital artery; b, anterior artery 

 of the OS suffraginis; d, anterior coronary artery, or circumflex artery of the coronet; e,' pre- 

 plantar ungual artery; /', inferior communicating arteries passing out from the semilunar 

 artery of the os pedis, through minute holes just above the lower border of the bone; they 

 unite to form (/") the circumflex artery of the toe; A, digital vein; B, superficial venous 

 plexus of coronary band and lateral cartilage; C, podophyllous venous plexus; G, circumflex 

 vein of the toe; 1, plantar nerve; 2, anterior digital branch of same; 3, posterior digital branch 

 of same; 4, small cutaneous branches of same. 



plantar artery courses along the plantar fissure, enters the 

 plantar foramen, and passes into the semilunar sinus of the os 

 pedis, where it unites with the terminal branch of the opposite 

 digital artery, forming the senvi-lurmr arch. 



