embryology Flashcards
1
Q
when does cleavage occur
A
~24h
2
Q
when is the morula formed
A
day 4
3
Q
when is the blastocytst formed
A
day 5
4
Q
when does implantation occur
A
6 days
5
Q
what becomes the embryo
A
inner cell mass
6
Q
what forms the chorion/placenta
A
trophoblast
7
Q
when does the amniotic cavity form
A
9 day
8
Q
what does the extraembryonic mesoderm form
A
placenta and chorion
9
Q
when does the extraembryonic mesoderm form
A
9 days
10
Q
when does gastrulation occur
A
16 days
11
Q
what gives rise to the notochordal process
A
migrating ectoderm to form mesoderm
12
Q
fomration of neural tube is called waht
A
neurulation
13
Q
neurulation steps and times
A
17 - neural plate
19 - groove
20 - folds
22 - tube
14
Q
sclerotome forms what
A
backbone and ribs
15
Q
myotome forms what
A
back and neck myscle
