Implantation Flashcards
The processor development from a one celled zygote to a blastocyst take
One week
Ectopic pregnancy
When implantation takes place at a site which is not the uterus
Where does implantation take place?
Fundus of the uterus
Where doe the late blastocyst attach to the endometrium?
Embryonic pole
The attachment of the blastocyst to the endometrium is called?
Syncytiotrophoblast
How does the developing embryo get a nutrient supply.
The syncytiotrohoblast spreads erodes and invades the endometrium , the syncytiotrohoblast expands and contacts the glands and blood vessels of the endometrium.
Cytotrophoblast
The remaining of the blasocyst that is not the syncytiotrohoblast , its cells divide to form new cells which migrates into the syncytiotrohoblast and fuse with it
When and by which cells secrete hCg
Human chronic gonatrophin, is secreted by the syncytiotrohoblast cells by the second of two weeks.
If an ectopic pregnancy occurs what would be the level oh hCg
Low
The mass of cells thin out to form two layers
A layer of cells that line the cavity above the disc. And the cavity
The layer of cells that line the cavity becomes
Amnion
The cavity of the blastocyst becomes the
Amniotic cavity
The upper layer of is composed of larger cells and is called
Epiblast or endoderm
The small cells of the layer layer of the developing blastocyst is called
Hypoblast or epiderm
Primary yolk sac
When the cells of the hypoblast divide and migrate to form an inner lining for the cytotrophoblast. And there is a chamber that is now enclosed .
