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Embryonic Development: Connecting Stalk and Umbilical Cord

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Embryonic Development: Connecting Stalk and Umbilical Cord

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Questions and Answers

What is the primary function of the connecting stalk?

To form the amniotic cavity

To connect the mesoderm with trophoblasts (correct)

To form the umbilical cord

To connect the embryo to the placenta

What is the main component of Wharton's jelly?

Mucous connective tissue (correct)

Epithelial tissue

Muscle tissue

Fibrous connective tissue

What is the function of the umbilical vessels?

To carry oxygenated blood from the fetus to the placenta

To remove waste products from the fetus

To carry non-oxygenated blood from the fetus to the placenta (correct)

To carry nutrients from the placenta to the fetus

What is the length of the umbilical cord at full term?

About 50 cm Signup and view all the answers

What is the function of the vitello-intestinal duct?

To disappear during fetal development Signup and view all the answers

What is the characteristic shape of the umbilical cord?

Twisted Signup and view all the answers

What is the location of the allantois in the connecting stalk?

At the proximal part Signup and view all the answers

What happens to the extra-embryonic coelom during development?

It disappears after sometime Signup and view all the answers

What is the function of the amniotic sheath in the umbilical cord?

To provide a tubular covering Signup and view all the answers

What is the direction of blood flow in the two umbilical arteries?

Towards the placenta Signup and view all the answers

What is the fate of the vitello-intestinal duct?

It disappears at about one month Signup and view all the answers

What allows the fetus to float in the amniotic cavity?

The amniotic fluid Signup and view all the answers