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Importance of Placenta

How are chori...

Question

How are chorionic villi formed?

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Solution

Chorionic villi:
Trophoblast cells are used for chorionic villi formation.
Chorionic villi are placental tissue's wispy projections that share the genetic makeup of the baby.
Trophoblast cells are the cells formed from the outer layer of the blastocyst, which develops mainly into the placenta and provides nutrients to the embryo.

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Q. What is formed by chorionic villi cooperating with the tissues of uterus of mother?

Q. Assertion :After implantation, finger-like projections appear on the trophoblast called chorionic villi. Reason: Chorionic villi are surrounded by the uterine tissue and maternal blood.

Q. When and where do chorionic villi appear in humans? State their function.

Q. Assertion: Foetal disorders can be diagnosed by chorionic villi sampling.

Reason: Karyotyping can be done for mitotically dividing cells of chorionic villi.

Differentiate between chorionic villi and umblical cord.

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Importance of Placenta

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