Table of Contents
What is the function of decidua Capsularis?
The decidua capsularis is the portion underlying the chorion laeve and fuses with it to become the outermost component of the peripheral membranes. As the amniotic cavity expands to fill the uterus, the decidua capsularis becomes thinner until the chorioamnion is in direct contact with the decidua parietalis.
What does decidua Capsularis become?
The part of the decidua that interacts with the trophoblast is the decidua basalis (also called decidua placentalis), while the decidua capsularis grows over the embryo on the lumenal side, enclosing it into the endometrium.
Where is the decidua Capsularis located?
Decidua
| Region | Description |
|---|---|
| Decidua basalis | Region between the blastocyst and the myometrium |
| Decidua capsularis | Endometrium that covers the implanted blastocyst |
| Decidua parietalis | All the remaining endometrium |
What does decidua basalis mean?
Medical Definition of decidua basalis : the part of the endometrium in the pregnant human female that participates with the chorion in the formation of the placenta.
1. Decidua • It is endometrium after implantation which is sheded after birth of fetus. • Character of endometrium: • Increased secretory function of uterine glands. • Decidual cells are endometrial cells filled with glycogen.
Is decidua an endometrium?
The decidua is the specialized layer of endometrium that forms the base of the placental bed. The corpus luteum of the ovary (and later, the placenta itself) produces progesterone that induces endometrial stromal cells to undergo cellular modifications and vascular alterations termed the ‘decidual reaction.
What is decidua PPT?
1. Decidua • It is endometrium after implantation which is sheded after birth of fetus. • Character of endometrium: • Increased secretory function of uterine glands. • Decidual cells are endometrial cells filled with glycogen. • Arteries become more spiral with arterio- venous anastomosis.
What is meant by decidua reaction?
A decidual reaction is a feature seen in very early pregnancy where there is thickening of the endometrium around the gestational sac. A thin decidual reaction of less than 2 mm is considered one of the features suggestive of an anembryonic pregnancy 2.
What means decidua?
Definition of decidua 1 : the part of the endometrium that in higher placental mammals undergoes special modifications in preparation for and during pregnancy and is cast off at parturition. 2 : the part of the endometrium cast off in the process of menstruation.
What is decidua cell?
Decidual cells are a distinctive cell population observed in the mammalian endometrium during pregnancy. Their appearance can also be induced with appropriate stimuli in the hormone-primed pseudopregnant uterus.
What does decidua look like?
When it’s expelled, a decidual cast will be red or pink. It will be somewhat triangular and close to the size of your uterus. This is because the entire lining exited as one piece. The decidual cast will also appear fleshy because it’s made up of tissue.
What is the medical definition of decidua capsularis?
medical Definition of decidua capsularis. : the part of the decidua in the pregnant human female that envelops the embryo. Common wisdom holds that by the fourth month of human pregnancy the decidua capsularis fuses with the decidua vera, thereby obliterating the uterine cavity.
When does the decidua fuse with the capsularis?
: the part of the decidua in the pregnant human female that envelops the embryo Common wisdom holds that by the fourth month of human pregnancy the decidua capsularis fuses with the decidua vera, thereby obliterating the uterine cavity.— Carl J. Pauerstein, The Journal of the American Medical Association, 16 Aug. 1985
Where does the capsular decidua shed during menstruation?
capsular decidua (decidua capsula´ris) that portion directly overlying the implanted ovum and chorion, facing the uterine cavity. menstrual decidua (decidua menstrua´lis) the hyperemic uterine mucosa shed during menstruation.
What is the medical definition of the decidua basalis?
Medical Definition of decidua basalis : the part of the endometrium in the pregnant human female that participates with the chorion in the formation of the placenta. Furthermore, what are the three layers of the decidua? The decidua, like secretory endometrium, consists of three layers: the thin basal layer.