THE LIGAMENTS OF THE PHALANGES. 



863 



glenoid fibro- cartilage is attached to the first phalanx by three fibrous 

 bands, and by the superficial inferior sesamoid ligament to the base of the 

 sesamoids. 



The pedal-joint lies within the hoof. It is an imperfect hinge-joint. 



Fig. 488. — Perpendicular mesial section of right fore foot (the position of the lower 

 bones is shown rather too upright). A , Lower end of great metacarpus ; B, 

 suffraginis or first phalanx ; G, inner sesamoid bone (to render the bone visible, a 

 portion of the intersesamoid ligament has been removed) ; D, coronet bone ; 

 E, pedal bone ; F, navicular bone ; a, extensor pedis tendon ; b, superior sesamoid 

 or suspensory ligament ; b ', inferior sesamoid ligament ; c, flexor pedis perforatus 

 tendon ; c ', great sesamoid sheath ; d, flexor pedis perforans tendon ; e, capsular 

 ligament of the fetlock-joint ; /, capsular ligament of pastern-joint ; g and g ', 

 capsular ligament of coffin-joint ; h, bursa of flexor pedis perforans ; i, plantar 

 cushion ; i ', portion of plantar cushion forming the bulbs of the heel ; k, coronary 

 band ; I, sensitive wall ; m, sensitive sole ; n, sensitive frog ; o, horny wall ; 

 p, horny sole ; q, horny frog ; r, ergot at base of fetlock ; s, skin. 



with less liberty of motion than the coronary joint. It has five ligaments ; 

 an interosseous between the navicular and coffin bones, and two pairs of 

 lateral ligaments. The synovial membrane presents on each side a small 

 dilatation between the lateral ligaments, and a larger pouch which extends 

 upwards on the back of the second phalanx. The tendon of the extensor 

 pedis, expanding as it descends, passes over the anterior surface, that 



