Decidua
Decidua
Decidua (/dɪˈsɪdʒuːə/), from the Latin word deciduus, meaning "falling off" or "shedding", is the term used in embryology to describe the part of the endometrium (the inner lining of the uterus) that undergoes changes during pregnancy.
Etymology
The term "decidua" comes from the Latin word "deciduus", which means "falling off" or "shedding". This is in reference to the fact that the decidua is shed during the process of childbirth.
Function
The decidua has several important functions during pregnancy. It provides a site for the implantation of the embryo, contributes to the formation of the placenta, and plays a role in the protection of the embryo from the mother's immune system.
Types of Decidua
There are three types of decidua:
- Decidua Basalis: This is the part of the decidua that is located at the site of implantation and contributes to the formation of the placenta.
- Decidua Capsularis: This part of the decidua envelops the developing embryo.
- Decidua Parietalis: This is the remaining part of the decidua that lines the rest of the uterus.
Related Terms
External links
- Medical encyclopedia article on Decidua
- Wikipedia's article - Decidua
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