True regarding umblilical cord is(2018): (A) A) Two aery and two veins, (B) B) One aery and two veins, (C) C) Observations of a single umblilical vein is associated with additional anomalies, (D) D) Observations of a single umblical aery is associated with additional anomalies
Answer is C. Umbilical cord contains right and left umbilical aeries, the left umbilical vein, (LEFT IS LEFT), remnants of the vitello-intestinal duct and yolk sac. The ground substance of the umbilical cord is made up of Whaon's jelly derived from mesoderm. Ref:- Inderbirsingh, pg num:-46