PLATE XII. 



This plate shows a longitudinal section of the digital region in 

 its median plane; 



Its object is to show the spongeous substance in the interior of 

 the bone, the fibrous intersections in the plantar cushion of the ar- 

 ticular and tendonous synovial sheaths, and of the plantar cushion 

 (or pad) in the interior of the hoof under the third phalanx and the 

 navicular bone. 



A Inferior part of the pad (cushion). 



B Ligamentous bands (filaments) representing the structure of the fibrous 



body forming the plantar pad. 

 C Enveloping fibrous membrane of the plantar pad. 

 D Point of insertion of the plantar pad to the inferior face of the bone of 



the foot. 

 E Spongeous substance of the interior of the second phalanx. 

 r Articulation of the first phalanx with the second. 

 H Branches of the perforatus at its insertion to the lateral parts of the 



second phalanx, or small pastern bone. 

 I Insertion of the plantar aponeurosis to the semi-lunar crest. 

 K Interior of the first phalanx. 

 L Section of the perforatus tendon. 



M Transverse ligament of the yellow fibrous tissue uniting the anterior 

 face of the perforans to the posterior face of the os coronae, etc. 

 (2d phalanx). 

 N Diverticulum of the sheath of the articulation of the foot between the 



little sesamoid and the third phalanx. 

 O Little sesamoidal sheath. 

 P Capsule of the articulation of the foot set superiorly against the cut du 



sax of the great sesamoidal sheath. 

 T Perforans tendon. 

 Y MetacarDO-phalangial articulation, or fetlock joint. 



