when: Flashcards
1
Q
neural tube closes
A
week 6
2
Q
arm and leg buds
A
week 6
3
Q
pump blood
A
week 6
4
Q
visible eyes
A
week 8
5
Q
trunk straightens
A
week 8
6
Q
ovaries/testes develop
A
week 9
7
Q
kidneys produce urine
A
week 10
8
Q
eyes fuse
A
week 10
9
Q
jaw opens/closes
A
week 11
10
Q
swallows/ sucks thumb
A
week 11
11
Q
bronchial tree forms
A
4th month
12
Q
vernix develops
A
4th month
13
Q
circadian rhythms form
A
5th month
14
Q
lanugo develops
A
5th month
15
Q
bone marrow makes blood cells
A
6th month
