TEXT-BOOK OF EMBRYOLOGY. 



Innominate artery 



Branches of right_ j 

 pulmonary artery" ~ 



Arch of aorta 

 Pulmonary artery- - 

 Right auricular appendage 



Left carotid artery 

 Left subclavian artery 



Ductus arteriosus 



__ Branches of left 

 2 7 pulmonary artery 



-"- Left auricular appendage 



Left ventricle 



Right ventricle . --S^i^.- -4~; 



Descending aorta 



FIG. 178. Ventral view of heart of foetus at term. Kollmann's Atlas. 



Sup. vena cava- 



Right atrium- Bj 



Inf. vena cava 



Right ventricle A; -ffe V\'jU 



Inf. vena cava 



Pulmonary veins 



Left atrium 



Left ventricle 



FIG. 179. Dorsal half of foetal heart. Bumm, Kollmann's Atlas. 



