implantation

Question 1

where does the embryo normally implant

Answer 1

on the posterior or anterior of the uterine wall in the uterus

Question 2

describe the first changes to the trophoblast and embryo after implantation

Answer 2

trophoblast divides into the cytotrophoblast and the synctiotrohoblast
the embryo organises into 2 cell layers, epiblast and hypoblast

Question 3

what 2 cavities begin to form soon after implantation

Answer 3

the amniotic cavity (epiblast)

primitive yolk sac (hypoblast)

Question 4

what begins to appear and unite in the synctiotrophoblast soon after implantation

Answer 4

vacuoles begin to appear and unite, to form lacunae

Question 5

what is meant by the term bilaminar embryo

Answer 5

the embryo in between the blastocyst attaching to the uterine wall to becoming the implanted embryo

Question 6

what is an ectopic pregnancy

Answer 6

this is when the blastocyst implants out with the uterus, usually in the uterine tube