Implantation Quiz Flashcards
Maintenance of the corpus lutetium during the first trimester of pregnancy is accomplished principally by the secretion of
Luteinizing hormone
Implantation of the fertilized egg will most likely occur after
6 days
The thinner layer of cells of the embryonic disc consisting of small cuboidal cells adjacent to exocoelmic activity give rise to
Primary endoderm/ hypoblast
The exocoelmic cavity becomes the modified to form the
Yolk sac
What is the heuser’s membrane?
The hypoblast and the extracellular matrix
The part of the blastocyst that erodes the endometrial stroma is
Syncytiotrohoblast
The late blastocyst attaches to the membrane by the
Embryonic pole
Ectopic pregnancies represent a significant risks to the mother due to
Rupture and haemorrhage
As implantation progresses the syncytiotrohoblast expands and contracts the blood vessels and glands of the endometrium. This provide
Nutrition
Which cells are responsible for the secretion of HCG?
Syncytiotrohoblast
After implantation the stromal connective tissue cells around the implantation site undergo changes and are called
Decidual cells
The thicker layer of cells of the embryonic disc consisting of high columnar cells related to the amniotic cavity are known as
Epiblast
The bilaminar embryonic disc is formed by
Second week
The primitive uteroplacental circulation is established In the embryo by day
12
The ovum reaches the uterus , how many days after fertilization
After 5-6 days
