<prompt> Umbilical cord has:1 vein and 2 aeries2 vein and 2 aeries1 vein and 1 aery2 veins and 1 aery  <response>: CONTENTS OF UMBILICAL CORD: - 2 Umbilical aeries - 1 Umbilical vein - Rudimentary allantois - Remnant of omphalomesenteric vitellointestinal duct - Whaons jelly 