The decidua which takes part in the formation | vedclass

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(A) The decidua is the modified endometrium of the uterus during pregnancy. It is divided into three regions based on its position relative to the emb

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Decidua basalis

Vedclass · Answer

(A) The decidua is the modified endometrium of the uterus during pregnancy. It is divided into three regions based on its position relative to the embryo: $1$. $Decidua$ $basalis$: This is the part of the decidua that lies between the embryo and the stratum basalis of the uterus. It contributes to the formation of the maternal component of the placenta. $2$. $Decidua$ $capsularis$: This is the part of the decidua that covers the embryo and separates it from the uterine cavity. $3$. $Decidua$ $parietalis$: This is the remaining part of the decidua that lines the rest of the uterine cavity. Therefore,the $Decidua$ $basalis$ is the correct answer as it directly participates in the formation of the maternal portion of the placenta.

Column $I$	Column $II$
$(A)$ First month	$(i)$ Separation of eyelids
$(B)$ Second month	$(ii)$ Hairs on head
$(C)$ Fifth month	$(iii)$ Heart
$(D)$ Sixth month	$(iv)$ Limbs and digits

The decidua which takes part in the formation of the maternal portion of the placenta is:

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