. The comparative anatomy of the domesticated animals. Veterinary anatomy. 182 THE vertebrae, constitutes a vast triangular and vertical septum, which itself results from the apposition of the two laminae that lie back to back, and are united by connective tissue ; they are bordered above by the two lateral lips of the cord. The elastic fibres which enter into their composition are given off either from the latter, or from the spinous processes of the second and third dorsal vertebrae; they are directed downwards or forwards, and reach the spinous processes of the last six cerv
. The comparative anatomy of the domesticated animals. Veterinary anatomy. 182 THE vertebrae, constitutes a vast triangular and vertical septum, which itself results from the apposition of the two laminae that lie back to back, and are united by connective tissue ; they are bordered above by the two lateral lips of the cord. The elastic fibres which enter into their composition are given off either from the latter, or from the spinous processes of the second and third dorsal vertebrae; they are directed downwards or forwards, and reach the spinous processes of the last six cervical vertebrae, into which they are inserted by so many digitations, becoming confounded with the interspinous ligaments of the neck. The fibres of the two last digitations are few in number, widely separated from one another, and united by many anastomosing branches, which make them appear as a kind of wide network. The lamina of the cervical ligament are in relation, outwardly, with the superior branch of the ilio-spinal ligament, the intertransversalis colli muscles, and the complexus muscle. (This important structure, which is, in reality, the mechanical stay and support of the heavy head and neck of quadrupeds, and is usually temied the ligamentvm nucJm, is all but absent in Man, being represented in him by a tliin narrow bandâor rather two thin planes of fibres, the ligamenta suhflava. It is described by Leyh as if there were not two portions, and that excellent anatomist does not appear to insist suificiently on the difference between the dorso-nuchal and the dorso-lumbar divisions. Percivall, who almost entirely neglects the ligaments, also makes no distinc- tion. The difference in structure, elasticity, and situation, wairants the distinction made by Chauveau. As already indicated, the function of this ligamentâ and more particularly of its nuchal divisionâis to maintain the head and neck in their natural position during repose, and to allow the most extensive move-
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