82 



EQUINE ANATOMY. 

 FIG. 10. 



THE HEART AND PRINCIPAL VESSELS; LEFT FACE. 



Right ventricle; b. Left ventricle; c. Right auricle; d, Left auricle; e. Pulmonary 

 artery; /, Obliterated arterial canal; /, Pulmonary veins; g. Anterior aorta; h, 

 Left axillary artery; i, Right a*xillary artery, or brachio-cephalic trunk; /, Origin 

 of the dorsal artery; k. Origin of the superior cervical artery; /, Origin of the 

 vertebral artery; m, Origin of the inferior cervical artery; , Origin of the in- 

 ternal thoracic artery; o. Origin of the external ditto; p, Carotid arteries; q, Pos- 

 terior 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; z/ ', Embouchure 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. i, Right cardiac artery; 2, Left cardiac artery; 3; Auriculo- 

 ventricular branch of the latter; 4, Its ventricular branch; 5, Cardiac vein. 



