Important dates in developments Flashcards
1
Q
day 6
A
implantation
2
Q
day 16
A
gastrulation
3
Q
day 18
A
neural plate forms
4
Q
day 20
A
first somite forms
5
Q
day 22
A
neural tube begins to close and heart begins to beat
6
Q
day 24
A
cranial neuropore closes
7
Q
day 26
A
caudal neuropore closes
8
Q
week 2
A
primordial germ cells arise from the epiblast
9
Q
week 3
A
primordial germ gells in the yolk sac
10
Q
week 12
A
blood formation involves the spleen
11
Q
week 30
A
blood formation shifts to marrow
12
Q
week 9
A
blood formation begins in liver
