464 



THE ARTERIES 



To the right are the ascen«lin,tr aorta, the riglit aurieular appendix, the right 

 coronary artery, and tlie cardiac nerves. 



To the left are the pericardium, the left pleura and lung, the left auricular 

 appendix, the left coronary artery, and the cardiac nerves. 



Fig. 318. — The Heart, with the Arch of the Aorta, the Pulmonary Artery, the 

 Ductus Arteriosus, and the Vessels concerned in the Fcetal Circulation. 



(From a preparation of a fcetus in the Museum of St. Bartholomew's Hospitiil.) 



Right innominate vein 



I'fJia cava superior 

 Xif/lit pulmonary artery 



Vena cava inferior 



Leji branch of portal vein 



Umbilical vein 



Portal rein 



Right branch of 

 portal vein 



Umbilical vein 

 Umbilical arteries 



Ifypogastric artery 



Left innominate 

 vein 



A rch of aorta 



DUCTUS ARTERIOSUS 



Left pulmonary 

 artery 



Descending aorta 



y^ Superior 



mesenteric artery 



Splenic vein 



Superior 

 mesenteric vein 



Inferior 

 mesenteric artery 



Left common iliac 

 artery 



Internal iliac artery 

 External iliac arte.ru 



THE PvIGHT PULMONARY ARTERY 



The right pulmonary artery (figs. 319 and 320), longer than the left, passes 

 almost horizontally outwards under the arch of the aorta to the root of the right 



