Implantation and Placentation

Question 1

where does plantation typically occurred

Answer 1

posterior wall

Question 2

what does the corpus luteum secrete

Answer 2

progestrone

Question 3

later on in development what takes on the role of secreting progestrone

Answer 3

the placenta

Question 4

where do the embryonic poles orientate themselves

Answer 4

cloesest to the endometrium

Question 5

what day does the invasion onto the endometrium wall by the syntcytotrhophoblasts occur

Answer 5

6 - 8

Question 6

what is the function of the epiblast

Answer 6

bring fluid in their embryonic cavity

Question 7

what does the synctyostrophoblasts and cytotrophoblast poke out of

Answer 7

uterine cavity and into the balstocysts

Question 8

what is invasion into the endometrium facilitated by

Answer 8

matrix metalloprotiases
help break down the endometirum

Question 9

further invasion forms what

Answer 9

HCG

Question 10

what does the decidiual reaction form

Answer 10

decidua uterine wall

Question 11

what happens to the endometrial cells

Answer 11

become more polyhedral

Question 12

why is this important

Answer 12

so they can fill with glycogen and lipids

Question 13

by what day is the embryo and blastocyst fully implanted into the peithelium of the endometrium

Answer 13

day 10 - 12