Placental Circulation. 



475 



V. cava superior 

 Aorta asceiidens - 



Foramen ovale 



Valvula venae eavae 

 [inferioris, Eustachii] 



Atrium dextrum - . 



Veiitriculus dexter - 



V. liepatica sinistra 



Ductus venosus 

 [ArantiiJ ->^ 



Distributions 

 in the liver 



cus aortae 



Ductus arteriosus 

 [Botalli] 



Ramus sinister 



a. pidmonalis 



A. pulmonalis 



Ventriculus 

 sinister 



V. portae 



V. umbilicalis 



..V. cava inferior 



- Aorta abdoiiiinalis 



Aa. umbilicales--: '. 



A. iliaea communis 



--V. iliaea communis 



..A. iliaea externa 



A. hypogastrica 



Vesica urinaria - 



511. Scheme of 



the circulation 



of the blood in 



the foetus, 



viewed from in front and somewhat from the left (see Fig. 510). 



(The heart is in its correct position and has been partly opened. The arrows indicate the 



direction of the blood cuiTent.) Text see p. 473. 



