EQUINE ANATOMY 



Fig io 



THE HEART AND PRINCIPAL VESSELS ; LEFT FACE. 



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

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

 axillary artery; /, Right axillary artery, or brachio-cephalic trunk; /, Origin of the 

 dorsal artery: k, Origin of the' superior cervical artery; /, Origin of the vertebral 

 artery, w, Origin of the inferior cervical artery; n. Origin of the internal thoracic 

 artery; o, Origin of the external ditto; /, Carotid arteries; q, Posterior aorta; r. An- 

 terior vena cava; s. Trunk of the axillary vein. /, Trunk of the internal thoracic vein; 

 «, Trunk of the dorso-cervical vein; v, Posterior vena cava; v' , Embouchure of the 

 hepatic and diaphragmatic veins; x, Vena azygos; j. 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. 



