Implantation, placentation and hormone changes in pregnancy

Question 1

Placentation occurs shortly after implantation of the embryo. Which stage occurs first in placentation stages?

Answer 1

Differentiation of trophoblast

Question 2

hCG is an essential hormone during pregnancy. What is its function and what structure secretes hCG?

Answer 2

Secreted from blastocyst and sustains progesterone levels from corpus luteum

Question 3

Name 2 key hormones needed to achieve the window of implantation

Answer 3

oestrogen and progesterone

Question 4

Foetal respiratory distress syndrome is the result of deficiency in which hormone?

Answer 4

Cortisol

Question 5

Pre-eclampsia is a disorder of placentation. What presenting symptoms are characteristic of this disorder?

Answer 5

High blood pressure and proteinuria

Question 6

At what stage of the menstrual cycle does decidualisation take place?

Answer 6

Mid-proliferative phase