The diseases and disorders of The diseases and disorders of the ox, with some account of the diseases of the sheep diseasesdisorderox00gres Year: 1889 THE ANATOMY OF THE OX. 75 the ox have these plexuses most largely developed. In the giraffe there is scarcely a trace of the plexus, and in this con- nection it should be said that this animal eats with its head Fig. 13.—The Heart and Principal Vessels, Left Face. a. Right ventricle; h. Left ventricle; c. Right auricle; d. Left auricle; e. Pulmonary artery; e'. Obliterated arterial canal; f. Pulmonary veins; g. Anterior aorta ; h. Left axil
The diseases and disorders of The diseases and disorders of the ox, with some account of the diseases of the sheep diseasesdisorderox00gres Year: 1889 THE ANATOMY OF THE OX. 75 the ox have these plexuses most largely developed. In the giraffe there is scarcely a trace of the plexus, and in this con- nection it should be said that this animal eats with its head Fig. 13.—The Heart and Principal Vessels, Left Face. a. Right ventricle; h. Left ventricle; c. Right auricle; d. Left auricle; e. Pulmonary artery; e'. Obliterated arterial canal; f. Pulmonary veins; g. Anterior aorta ; h. Left axillary artery; i. Right axillary artery, or brachio- cephalic trunk; j. Origin of the dorsal artery; k. Origin of the superior cervical artery; /. Origin of the vertebral artery; m. Origin of the inferior cervical artery; n. Origin of the internal thoracic artery; o. Origin of the external thoracic artery; p. Carotid arteries; q. Posterior aorta ; r. Anterior vena cava ; s. Trunk of the axillary vein; t. Trunk of the internal thoracic vein ; u. Trunk of the dorso-cervical vein; v. Posterior vena cava; v'. Em- bouchure of the hepatic and diaphragmatic veins ; x. Vena azygos ; y. Thoracic duct; z. Embouchure of that vessel, placed near the origin of the anterior vena cava. 1. Right cardiac artery; 2. Left cardiac artery ; 3. Auriculo-ventricular branch of the left cardiac artery; 4. Its ventricular branch ; 5. Cardiac vein. high up in the air, whereas most ruminants graze with their heads near the ground. There is no definite bifurcation of the carotid arteries in ruminants. There is a third longitudinal furrow jrunning down the wall
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