BOO 



THE APPARATUS OF Till 



and Mule. These latter productions, ranking us they do among the most 

 important organs of the locomotory apparatus of Solipeds, will first i< 

 notice. 



1. The Hoof of Solipcds. 



The hoof of Solipeds is an extremely important study, because of tlio 

 numerous diseases which affect this region. Consequently, it has been the 

 subject of several voluminous works, to which the student must be rei< 

 for a more complete description of its organisation j 1 as we cannot do inure 

 here than give some essentially descriptive details, necessary to fill up the 

 outline that wo have traced out. 



We will at first glance at the parts contained in the hoof, returning 

 afterwards to a description of the horny case itself. 



a. The Parts Contained in the 

 Hoof. 



Proceeding from within to 

 without, we find, in the interior 

 of the horny box : 1, The 

 third phalanx, navicular 1 

 and lower part of the strand 

 phalanx, forming the articula- 

 tion of the foot ; 2, The four 

 ligaments that bind this articu- 

 lation; 3, The tendon of the 

 common extensor of the pha- 

 langes which covers the articu- 

 lation in front, and that of the 

 pcrforans which supports it 

 behind, in becoming inserted 

 into the pedal bone, after gliding 

 over the posterior surface of 

 the navicular bone ; 4, The 

 complementary apparatus of th< 

 third phalanx; 5, The matrix 

 of the hoof, or keratogcnons 

 membrane a continuation of 

 the derma covering the digital 

 region. To these parts must 

 bo added the vessels and nerves. 



The description of the bones 

 has been given at pages 84, 85, 

 86; 



Of tho articulation and its 

 ligaments, at pages 157, 158 ; 



Of the tendon of tho an- 

 icrior extensor of the phalanges, 

 at page 2G3 ; 



LONGITUDINAL MEDIAN SECTION OF THE FOOT. 



1, Anterior extensor of the phalanges, or extensor 

 pedis ; 2, Lateral extensor, or extensor suft'raginis ; 



3, Capsule of metacarpo-phalangeal articulation ; 



4, Large metacarpal bone ; 5, Superficial flexor of 

 the phalanges, or perforatus ; 6, Deep flexor, or 

 perforans ; 7, Sheath ; 8, Bursa ; 9, Sesamoid 

 bone; 10, Ergot and fatty cushion of fetlock; 11, 

 Crucial ligament; 12, Short sesamoid ligament; 

 13, First phalanx; 14, Bursa; 15, Second pha- 

 lanx; 16, Navicular bone; 17, Plantar cushion; 



18, Third phalanx; 111, Plantar surface of 1 f; 



20, Sensitive or keratogenous membrane of third 

 phalanx. 



Of the perforans tendon, at page 286 ; 

 Of the arteries, at pages 553, 554, 555 ; 



Trait<? do 

 recent 



