Decidua basalis
Decidua Basalis
Decidua Basalis (pronunciation: deh-SID-yoo-uh BAY-suh-lis) is a term used in embryology and obstetrics to describe the portion of the decidua that is located at the site of implantation of the blastocyst and underlies the placenta.
Etymology
The term "decidua" comes from the Latin word "deciduus" meaning "falling off" or "shedding", referring to the shedding of the endometrial lining during menstruation and after childbirth. "Basalis" is derived from the Latin word "basis" meaning "base" or "foundation", indicating the location of this layer at the base of the uterus.
Function
The decidua basalis plays a crucial role in the pregnancy process. It is the maternal part of the placenta and is involved in the exchange of nutrients and waste products between the mother and the fetus. It also produces hormones that help maintain the pregnancy.
Related Terms
- Decidua Capsularis: The part of the decidua that surrounds the chorionic sac.
- Decidua Parietalis: The remaining part of the decidua that lines the rest of the uterine cavity.
- Decidual Cells: Specialized cells in the decidua that have a role in the immune tolerance of the fetus.
- Trophoblast: The outer layer of cells of the blastocyst that forms the fetal part of the placenta.
See Also
External links
- Medical encyclopedia article on Decidua basalis
- Wikipedia's article - Decidua basalis
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