Decidua
For learning anatomy, please visit :
My youtube channel : @easyhumanatomy73
My website : http://easyhumananatomy.com
My facebook page: https://www.facebook.com/easyhumanatomy/
My blog: http://www.easyhumanatomy73.blogspot.com
My blog: http://www.microscopicanatomybd.blogspot.com
Decidua means gravid endometrium.
Decidualization / Decidua reaction
·
Stromal cells of the endometrium become polyhedral
and loaded with glycogen and lipids
·
Stromal cells begin to secrete cytokines,
growth factors, and proteins like IGFBP1 and prolactin along with extracellular matrix (ECM) proteins such as fibronectin and laminin.
The increased production of these ECM proteins turns the endometrium into the
dense structure known as the decidua,
·
Presence of decidual white blood cells (leukocytes),
·
intercellular spaces are filled with extravasate
·
the tissues is edematous
At first
it occur at the site of implantation but soon spread throughout the endometrium.
Parts of decidua: it is divided into three parts
1.
Decidua basalis :parts
of decidua deep to the developing embryo which contributes to the development
of placenta
2.
Decidua capsularis :part
of decidua which surround the embryo and it is separated from the uterine
cavity
3.
Decidua parietalis :rest
of the decidua excluding decidua basalis and decidua capsularis
No comments:
Post a Comment