no FISTULA AND POLL-EVIL 



may be caused by wadding the cavity too tight. 



The other place through which the spinal 

 cord becomes exposed is at the occipito-atlant- 

 oid articulation. Here it is attacked by en- 

 croaching disease after the capsule of the joint 

 has been invaded. 



The ligamenUimi nuchse is a powerful, elas- 

 tic apparatus, the principal function of which 

 is to assist the extensor muscles of the head and 

 neck. It extends from the occipital bone to 

 the withers, where it is directly continuous with 

 the supraspinous ligament. It consists of two 

 parts, funicular and lamellar. 



The funicular part arises from the external 

 occipital protuberance and the fossa below it 

 and is inserted into the summits of the verte- 

 bral spines at the withers. — Sisson. 



It is between the funicular portion of this 

 ligament and the dorsal arch of the atlas that 

 the bursa (supra-atloid) lies. At the pole the 

 funicular part consists of two bands closely at- 

 tached to each other. The lamellar portion of 

 the ligamentum nuchas is not attached to the 

 atlas, but begins at the axis to which a ver} 

 tliick and strong digitation is attached. 



Ohliqmis Cajntis Antcfior. This is a short, 

 flat and nearly square muscle, having tendin- 

 ous intersections. It originates from the an- 

 terior edge and, ventral siu'face of the wing of 



