Question

which membranes form umbilical cord​

Answer 1

hi

The umbilical cord contains Wharton's jelly, a gelatinous substance made largely from mucopolysaccharides which protects the blood vessels inside. It contains one vein, which carries oxygenated, nutrient-rich blood to the fetus, and two arteries that carry deoxygenated, nutrient-depleted blood away.

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Answer 2

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A membrane called allontis, which originates from the digestive canal of the embryo forming the major part of a tube like structure called umbilical cord.