DECIDUA CAPSULARIS Meaning and
Definition
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Decidua capsularis refers to a specialized tissue layer that forms within the uterus during pregnancy. It is one of the three main regions of decidua, the lining of the uterus that undergoes significant changes to support the placenta and embryo/fetus during pregnancy.
Decidua capsularis specifically develops on the upper part of the expanding embryonic sac and covers the implanted embryo. It is characterized by its cup-like shape and surrounds the developing fetus, forming a protective capsule-like structure. This tissue layer arises from the uterine endometrium, the inner lining of the uterus, in response to the hormonal changes that occur during early pregnancy.
As pregnancy progresses, the decidua capsularis interfaces with the decidua parietalis and decidua basalis. The decidua parietalis lines the walls of the uterus not directly associated with the placenta, while the decidua basalis is located at the site where the placenta will eventually develop. These three regions of decidua collectively play essential roles in providing structural support, nutrient exchange, and endocrine function for the developing fetus.
The decidua capsularis undergoes gradual thinning as pregnancy advances, eventually merging with the decidua parietalis. By the third trimester, it usually disappears as the fetal growth and development proceed. Its dissolution allows for the expansion of the uterus to accommodate the growing fetus, and it helps maintain the stability and integrity of the pregnancy throughout its course.
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D. Reflexa, the layer which forms the outer investing envelope of the fetus.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for DECIDUA CAPSULARIS
- secidua capsularis
- xecidua capsularis
- cecidua capsularis
- fecidua capsularis
- recidua capsularis
- eecidua capsularis
- dwcidua capsularis
- dscidua capsularis
- ddcidua capsularis
- drcidua capsularis
- d4cidua capsularis
- d3cidua capsularis
- dexidua capsularis
- devidua capsularis
- defidua capsularis
- dedidua capsularis
- decudua capsularis
- decjdua capsularis
- deckdua capsularis
- decodua capsularis
Etymology of DECIDUA CAPSULARIS
The word "decidua" originates from the Latin term "deciduus", meaning "falling off" or "shedding", which is derived from the verb "decidere", meaning "to fall off" or "to cut off". The term "capsularis" is derived from the Latin word "capsula", which means "small vessel" or "capsule".
In the context of "decidua capsularis", these terms refer to the specific layers of the uterine lining during pregnancy. The decidua refers to the thick layer that lines the uterus, which is shed or sloughed off after childbirth. The capsularis refers to the portion of the decidua that surrounds the gestational sac, forming a capsule-like structure during early pregnancy.
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