. The comparative anatomy of the domesticated animals. Veterinary anatomy. THE GREAT LYMPHATIC VEIN AND ENTRANCE OF THE THOKACIO DUCT. A, Thoracic duct; B, Great lymphatic vein, or right lymphatic trunk; c, D, Anasto- moses established between them near their insertion. DIFFERENTIAL CHARACTERS IN THE LYMPHATIC SYSTEM OF OTHER THAN SOLIPED ANIMALS. The lymphatic system, glauds and vessels, is more developed in Euminanta and the Pig than in the Carnivora. In this respect the dcimestieated animals may be classified in the following order: Ox, Sheep., Horse, Pig, Hog, Cat. EuMiNANTS.â" The tl
. The comparative anatomy of the domesticated animals. Veterinary anatomy. THE GREAT LYMPHATIC VEIN AND ENTRANCE OF THE THOKACIO DUCT. A, Thoracic duct; B, Great lymphatic vein, or right lymphatic trunk; c, D, Anasto- moses established between them near their insertion. DIFFERENTIAL CHARACTERS IN THE LYMPHATIC SYSTEM OF OTHER THAN SOLIPED ANIMALS. The lymphatic system, glauds and vessels, is more developed in Euminanta and the Pig than in the Carnivora. In this respect the dcimestieated animals may be classified in the following order: Ox, Sheep., Horse, Pig, Hog, Cat. EuMiNANTS.â" The tlioracio duct of large Ruminants, when it has entered the thorax by a special opening In the diaphragm, almost distinct from that of the aortic arch, is placed above and to the right of the aorta, between it and the spine. There, although outside the corresponding intercostal arteries, it is completely concealed by a thick layer of adipose tissue, in which are numerous subdorsal glands. Towards the fifth dorsal vertebra, it receives a large lymphatic vessel coming from the enormous gland that exists on the track of the oesophagus in tlie posterior mediastinum; it then crosses the direc- tion of the aorta and the oesophagus, passes to the left, gains the entrance to the thorax, and opens in front of the first rib, above the junction of the left jugular with the anterior vena cava.' " The varieties it presents in the Ox are numerous and very common. The rarest disposition is that of a canal, single through- out its entire length, such as it has been described, and such as it is usually found to be in small ruminants (Fig. 309). This canal (Fig. 306), single at its origin and for the greater part of its extent, often bifur- cates towards the base of the heart, or at a short distance from its insertion. Of these t^vo branches, one passes to the right of the oesophagus and trachea, the other to the left of these, in foUowinj the ordinary direction ; and, at the entrance to the
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