This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Vitelline vein forms \nSelect and explain. \nA. Ligamentum venosum, B. Ligamentum teres, C. Poal vein, D. Coronary sinus', 'role': 'user'}, {'content': "Answer: C \nExplanation: 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", 'role': 'assistant'}]