THORAX AND ABDOMEN OF THE HORSE 19.' 



A. subclavia dextra. 



Vena cava cranialis. 



A. pulmonalis 

 Right atrium, 



Right ventricle 

 Vena cava caudalis 



Ductus venosus. ~ 



Aa. carotides communes. 

 A. subclavia sinistra. 



- Aortic arch. 



- Ductus arteriosus. 

 ■■ Lungs. 



" Left atrium, 

 " Aorta. 



V. portse. 



Vena cava caudalis. 



V. umbilicalis. 



A. cseliaca. 



A. mesenterica cranialis. 



A. iliaca externa dextra. - 



A. hypogastrica dextra. - 



A. umbilicalis dextra. - 



Fig. 84. — Diagram of the fcetal circulation. 



13 



