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Flashcards in Important dates in developments Deck (12):
1

day 6

implantation

2

day 16

gastrulation

3

day 18

neural plate forms

4

day 20

first somite forms

5

day 22

neural tube begins to close and heart begins to beat

6

day 24

cranial neuropore closes

7

day 26

caudal neuropore closes

8

week 2

primordial germ cells arise from the epiblast

9

week 3

primordial germ gells in the yolk sac

10

week 12

blood formation involves the spleen

11

week 30

blood formation shifts to marrow

12

week 9

blood formation begins in liver