True about umbilical cord ?
Correct Answer: Right umbilical vein disappears
Description: Umbilical cordUmbilical cord develops from connecting stalk, which extends from the caudal end of the embryo to the chorion.Umbilical cord is covered by amniotic epithelium and contains a core of mesenchyme known as whaan's jelly.Contents of umbilical cord are : (i) Whaon's jelly, (ii) Two umbilical aeries, (iii) One (left) umbilical vein, (iv)Remnant of yolk sac, and (v) Remnant of allanto-enteric diveiculum.Initially 2 umbilical aeries and 2 umbilical veins develop in mesoderm, but right umbilical vein disappears. Left umbilical vein persists along with 2 umbilical aeries.At full term, the umbilical cord measures 1-2cm in diameter, and 50-55cm in length and generally attached to the center of fetal surface of placenta.
Category:
Anatomy
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now