Timings Flashcards Preview

Embryology > Timings > Flashcards

Flashcards in Timings Deck (9)
Loading flashcards...
1

Period of the egg

Fertilisation to end of 1st week(implantation)

2

Period of the embryo

Week 1-8

3

Period of the fetus

3rd month to term

4

Embryo period ends

At the end of the 8th week

5

When do primordial germ cells form

By the 4th week (in the yolk sac)

6

How many weeks after conception does the fetal heart and conducting system develop

From 3-6 weeks

7

When does the morula form?

Day 4

8

What is the life span of the corpus luteum?

14-16 days

9

When does the thyroid start storing thyroid hormones in fetal life?

12 weeks