Vitelline vein forms
Inderbir Singh'sHuman embryology Tenth edition Pg 265 The pas of right and left vitelline that lie outside the substance of the liver undergo alterations leading to formation of poal vein 2 vitelline veins shows anastomosis before opening into sinus venosus that is 1dorsal and 2 ventral (proximal and distal). At dorsal anastomosis spleenic and superior mesentric vein joins vitelline vein poal vein is formed by:Dorsal anastomosis ventral anastomosis Right vitelline vein
Ligamentum venosum
Ligamentum teres
Poal vein
Coronary sinus
General anatomy