The spelling of the term "decidua vera" can seem tricky at first, but it can be easily understood with the help of its phonetic transcription. "Decidua" is pronounced as [dɪˈsɪdjuə], with the emphasis on the second syllable. "Vera" is pronounced as [ˈvɛrə], with the emphasis on the first syllable. Together, the term refers to the mucous membrane lining the uterus during pregnancy, which is shed after childbirth. With the correct phonetic pronunciation, this term can be easily understood and used in medical contexts.
Decidua vera, also known as the true decidua or decidua basalis, is a specialized tissue that forms in the endometrium of the uterus during pregnancy. It is an important component of the maternal-fetal interface, playing a crucial role in supporting the developing embryo and placenta.
The decidua vera develops in response to hormonal changes that occur after the fertilized egg implants itself into the uterine wall. It is formed from the thickened and enlarged functional layer of the endometrium, which lines the cavity of the uterus. The decidua vera is made up of several layers, including the compacta, spongiosa, and basalis zones.
The main function of the decidua vera is to provide nourishment and oxygen to the developing embryo through specialized blood vessels known as spiral arteries. It also acts as a protective barrier, separating the maternal and fetal circulations while still allowing for the exchange of nutrients and waste products. Additionally, the decidua vera secretes various hormones and growth factors that are essential for regulating and supporting pregnancy.
During pregnancy, the decidua vera undergoes significant changes, such as increased vascularization and cellular growth, to accommodate the growing embryo and placenta. After childbirth, the decidua vera is shed during the process of uterine involution.
In summary, decidua vera refers to the specialized tissue that forms in the endometrium during pregnancy, providing essential support and nourishment for the developing embryo and placenta.
The mucous membrane lining the cavity of the pregnant uterus and not in immediate relation with the ovum.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The term "decidua vera" is Latin in origin.
The word "decidua" comes from the Latin verb "decidere", which means "to fall off" or "to shed". In the context of the decidua, it refers to the inner lining of the uterus that is shed during the menstrual cycle or after giving birth.
The term "vera" is Latin for "true" or "real". In this context, it distinguishes the decidua vera from another structure called the "decidua reflexa", which is the outer part of the decidua during pregnancy.
So, "decidua vera" can be understood as the true or genuine decidua, which is the inner lining of the uterus.