760 



DISEASES OF THE WITHERS. 



aponeurotic bands or slieaths. The vertebrae give attachment 

 by the cartilaginous nucleus, which is at their apex, to the pos- 

 terior portion of the yellow, elastic cord, which is part of the 

 funicular portion of the hgamentum nuchae, and are also united by 

 the interspinal ligament. The muscles which rest upon the ver- 

 tebrae form six different planes, thus divided : 1st. The skin, lined 

 inside by cellular tissue, more condensed toward the median line 

 than on the sides, where it is loose ; 2d. The trapezimn muscle, 

 thin and aponeurotic inferiorly, but thicker in its upper portion, 



Fig. 557.— 1st and 2d Layers of the Eegion of the Withers. 

 P.— Skin folded down, pf.— Funicular portion of the cervical ligament, to. —Cer- 

 vical portion of the trapezium, td.— Dorsal portion of the same, ea.— Acromion spine 



which is muscular (Fig. 557), and lying over the external surface 

 of the scaj)ula and its cartilage of prolongation. 3d. The rhom- 

 boideus muscle, which is separated from the second plane on its 

 external siu'face by a layer of loose cellular tissue (Fig. 558), and 

 is lined in its internal face, by a yellow elastic band, inserted on 

 the inside face of the cartilage of prolongation of the scapula. 



