ARTICULATIONS OF THE SPINE. 



185 



sixth, and seventh vertebrae. The superior border of this auxiliary ligamentous production, is 

 concealed between the two lamiua of the principal ligament." ' 



B. Camel. — In this animal, the common supraspinous ligament is entirely composed of 

 yellow elastic tissue ; it is therefore impossible to distinguish, physically, a dorso-lumbar and a 

 cervical portion. It is remarkable for its thickness and width ; and its dimensions increase 

 from behind to before, especially from the second lumbar vertebra. At the fifth, sixth, seventh, 

 eighth, ninth, and tenth dorsal vertebrae an elastic band is given off fi om its borders ; as this 

 descends, it gradually becomes thinner until it reaches the external intercostal muscles. 



From the ninth dorsal vertebra, the supraspinous ligament divides into two layers, which 

 are placed against the lateral faces of the spinous processes. In the cervical region, the layers 



Fig. 123, 



kt^i^l^^-^ 



^i 



x\\\-^ 



CERVICAL LIGAMENT OF A YOUNG CAMEL. 



become rounded, are joined to each other by means of connective tissue, and describing an S- 

 shaped curve, become inserted into the occipital bone. 



They give oflf, from their inferior border, six digitations, which are attached to the spinous 

 processes of tlie last six cervical vertebrae. An accessory leaf is situated between the two 

 portions just described : it is detached from the anterior border of the spinous process of the 

 first dorsal vertebra, and is fixed anteriorly into the two last cervical vertebrae. 



C. Pig. — The Pig, remarkable for the shortness of its neck and the limited movements of 

 this region, does not show any cervical ligament, properly so called. It is replaced by a super- 

 ficial fibrous raphe', extending from the occipital bone to tlie spinous process of the first dorsal 

 vertebra. 



^Journal de MMecine VeW-inaire, p. 122. Lyons, 1848. 



