decidua parietalis,decidua basalis,decidua capsularis/ Development of the Placenta

 

decidua parietalis,decidua basalis,decidua capsularis

 

decidua parietalis,decidua basalis,decidua capsularis

 

Development of the Placenta
The placenta is composed of both a maternal (arising
from the endometrium) and fetal (arising from a section
of the chorionic sac) portion. Decidua is the term used
to describe the functional layer of the endometrium in

 

the gravid woman. The decidua is further named according
to the specifi c anatomic relationship to the
implanted conceptus: 1) the decidual basalis lies deep
to the conceptus and develops into the maternal side
of the placenta; 2) the decidua capsularis overlies the
conceptus, and; 3) the decidua parietalis/vera encompasses
all of the remaining decidua.

 

placenta is composed of both a

  maternal (arising from the endometrium) and

  fetal (arising from a section of the chorionic sac) portion.

1)the decidual basalis

      lies deep to the conceptus and

      develops into the maternal side of the placenta

 2) the decidua capsularis

     overlies the conceptus

3) the decidua parietalis/vera

    encompasses all of the remaining decidua.