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Parturition

Finger-like p...

Question

Finger-like projection called chorionic villi appear on the ______ after the implantation.

A

ampulla

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B

infundibulum

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C

trophoblast

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D

inner cell mass

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Solution

The correct option is C trophoblast
After implantation, finger-like projections appear on the trophoblast called chorionic villi which are surrounded by the uterine tissue and maternal blood. The chorionic villi and uterine tissue become interdigitated with each other and jointly form a structural and functional unit between developing embryo (foetus) and maternal body called placenta.

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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.

The small finger-like projection called villi present in the _______ helps in absorption of nutrients.

Q. The small finger-like projection called villi present in the helps in absorption of nutrients.

Q. Given below are four statements each with one or two blanks. Select the option which correctly fills up the blanks in any two statements.
(A) The embryo with 8 to 16 blastomeres is called a (i) .
(B) Embedding of the (i) in the endometrium of the uterus is called implantation and it leads to (ii) .
(C) After implantation, finger like projections appear on the trophoblast called (i) , which are surrounded by the (ii) and maternal blood.
(D) Inner cell mass contains certain cell called (i) cells which have the potency to give rise to all the tissues and organs.

Q. Furnish the technical term for the following:

a) Cushion of fatty tissue covered by skin and pubic hair in the female external genitalia
b) The finger like projections which collect ovum after ovulation
c) The middle thick layer/ wall of the uterus
d) Semen without sperm
e) The finger like projections appearing on the trophoblast after implantation.

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