What do you mean by decidua?
Corpus luteum from ovary produce the hormone, progesterone. After the implantation of the pregnancy the endometrium terns into decidua. Then onwards the placenta produces the hormone, progesterone to term.
Is a membrane
The inside of the uterus is lined with the "endometrium" which is shed every month if you are not pregnant. Once you get pregnant that lining changes to the "decidua" which stays in place because of the hormone progesterone and hCG the pregnancy hormone during pregnancy.
A bacterial disease leading to changes in the decidua.
Chorionic villi & Decidua Basalis
Chorionic villi & Decidua Basalis
The name would be Larix decidua.
from the chorion frondosum of the fetus and the decidua basalis of the mother
The decidua basalis portion of the endometrium
Chorionic Villi with Fetal capillaries Intervillous Spaces Decidua basalis with maternal capillaries
decidua basalis