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4.6 Pregnancy
4.6 pregnancy
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Biologie
Middelbare school
vwo
Leerjaar 3
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4.6 pregnancy
Slide 1 - Diapositive
learning objectives
what is cleavage and where does it take place?
what is implantation and why is this process needed for a healthy embryo to form?
what structures are there to nourish and support the developing foetus?
Slide 2 - Diapositive
what and where is cleavage?
7 days after fertilisation there is the implantation of the embryo;
on what day number?
Slide 3 - Diapositive
zygote -> morula-> blastocyst -> embryo
Slide 4 - Diapositive
what is cleavage?
(choose the best answer)
A
cell divisions during which the zygote grows into a tiny hollow ball of cells
B
cell divisions of the zygote in the oviduct until implantation
C
cell division during which the embryo grows into the first foetal stage
D
cell divisions during which the zygote grows into an foetus
Slide 5 - Quiz
implantation
Slide 6 - Diapositive
different stages - different names
zygote
= fertilised egg
embryo
= 32 cell stage after cleavages, at implantation
foetus
= 10 weeks of pregnancy, the beginning of all organs are present. From now these only have to grow and develop.
Slide 7 - Diapositive
Slide 8 - Diapositive
Slide 9 - Vidéo
After .... weeks of pregnancy the embryo is called foetus
A
8
B
9
C
10
Slide 10 - Quiz
Pregnany lasts for ... weeks after fertilisation
A
38
B
39
C
40
D
41
Slide 11 - Quiz
The earliest moment a neonatal can be given birth to is after ... weeks of pregnancy
A
23
B
24
C
25
D
26
Slide 12 - Quiz
It can't be be born earlier because ...
A
The lungs are underdeveloped so it cannot breath
B
The heart can't beat by itself
C
The neonatal does not have teeth in order to eat
D
the mother cannot breast feed the neonatal
Slide 13 - Quiz
the placenta belongs to ..
A
the mother
B
the foetus
C
both mother and foetus
Slide 14 - Quiz
synonym to foetal diagnosis is ...
A
postnatal check
B
postnatal screening
C
prenatal screening
D
prenatal check
Slide 15 - Quiz
Slide 16 - Vidéo
Slide 17 - Vidéo
homework
learn par. 4.6 Pregnancy
finish exercises 1-7
Slide 18 - Diapositive
exit ticket
what did you learn about foetal development?
how could prenatal screening help to detect an unborn with Down's Syndrom?
Slide 19 - Diapositive
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