Timings Flashcards
1
Q
Period of the egg
A
Fertilisation to end of 1st week(implantation)
2
Q
Period of the embryo
A
Week 1-8
3
Q
Period of the fetus
A
3rd month to term
4
Q
Embryo period ends
A
At the end of the 8th week
5
Q
When do primordial germ cells form
A
By the 4th week (in the yolk sac)
6
Q
How many weeks after conception does the fetal heart and conducting system develop
A
From 3-6 weeks
7
Q
When does the morula form?
A
Day 4
8
Q
What is the life span of the corpus luteum?
A
14-16 days
9
Q
When does the thyroid start storing thyroid hormones in fetal life?
A
12 weeks
