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Decidua: Presented By-Debalina Ghosh P G Tutor Tmcon, Tmu

The decidua is the endometrium of the pregnant uterus. After implantation of the blastocyst, the decidua is divided into three portions: the decidua basalis in contact with the base of the blastocyst, the decidua capsularis covering the blastocyst, and the decidua vera lining the uterus cavity outside implantation. The decidua provides nutrition for early development, a site for implantation, and participates in formation of the placental basal plate.

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2K views4 pages

Decidua: Presented By-Debalina Ghosh P G Tutor Tmcon, Tmu

The decidua is the endometrium of the pregnant uterus. After implantation of the blastocyst, the decidua is divided into three portions: the decidua basalis in contact with the base of the blastocyst, the decidua capsularis covering the blastocyst, and the decidua vera lining the uterus cavity outside implantation. The decidua provides nutrition for early development, a site for implantation, and participates in formation of the placental basal plate.

Uploaded by

N. Siva
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PPTX, PDF, TXT or read online on Scribd
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decidua

Presented by- debalina ghosh


P g tutor
Tmcon, tmu
Decidua
The decidua is the endometrium of the pregnant uterus. After the
implantation of blastocyst into the compact layer of the decidua, the
different portion of decidua are renamed as-

Decidua basalis or serotine- the portion of the decidua in contact


with the base of the blastocyst

Decidua capsularis or reflexa- the thin superficial layer covering the


blastocyst

Decidua vera or parietalis- the rest of the decidua lining the uterus
cavity outside the side of implantation.
Function of placenta

Provide good nutrition in early stage of growing ovum by rich source of


glycogen an fat.

Provide good environment for implantation of blastocyst

Deeper penetration was control.

Decidua basalis takes part in the formation of basal plate of the


placenta.

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