<prompt> Ligamentum teres hepatis is derivative of:Ductus aeriosusDuctus venosusUmbilical veinNone of the above  <response>: After bih, the left umbilical vein and ductus venosus are obliterated and form the ligamentum teres hepatis and ligamentum venosum, respectively. Ref: Langmans embryology 11th edition Chapter 12. 