This lesson contains 24 slides, with interactive quizzes, text slides and 2 videos.
Lesson duration is: 50 min
Items in this lesson
Slide 1 - Slide
What is pregnancy and which phases are there?
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 - Slide
Pregnancy is the period of development from zygote to birth.
Pregnancy takes place in the female reproductive system
Zygote = fertilized egg
Slide 3 - Slide
7 days after fertilization implantation of the embryo in the uterus lining occurs. The next 9 months the zygote will develop into a baby.
Fertilization happens when a sperm cell meets an egg
Slide 4 - Slide
In which phase of the menstrual cycle can an egg be fertilized?
Phase 1 (day 1-7)
Phase 2 (day 7-13)
Phase 3 (day 13-28)
Slide 5 - Quiz
On which day in the menstrual cycle is the implantation of the fertilized egg?
Between day 5-10
Between day 10-15
Slide 6 - Quiz
The first phase: zygote
A fertilized egg is also called a zygote.
The zygote will start dividing into a tiny clump of cells inside the oviduct (the dividing is called cleavage).
From then on, the dividing zygote is called an embryo.
Slide 7 - Slide
zygote -> morula-> blastocyst -> embryo
Slide 8 - Slide
Slide 9 - Video
What is cleavage? (choose the best answer)
cell divisions during which the zygote grows into a tiny hollow ball of cells
cell divisions before fertilization
cell division during which the embryo grows into the first foetal stage
cell divisions during which the zygote grows into an foetus
Slide 10 - Quiz
The second phase: embryo
When an embryo reaches the uterus, it implants itself into the uterus lining.
The uterus lining develops into a placenta, which is able to provide the nutrients and oxygen through the umbilical cord to the embryo. Through the umbilical cord the embryo gets nutrients&oxygen in and removes waste&carbon dioxide.
The umbilical cord is the connection between the mother and the child. Different substances can pass from mother to child through the umbilical cord, like nutrients, oxygen and waste products. However, other substances can pass as well, such as alcohol, drugs and even some viruses. This is why the mother has to pay attention to what she consumes during pregnancy.
Slide 11 - Slide
During the 3rd week of pregnancy two thin membranes start to grow around the embryo: chorion and amnion
Slide 12 - Slide
Together the amnion and the chlorion form the amniotic sac. The amniotic sac is filled with amniotic fluid.
Slide 13 - Slide
In the amniotic fluid the embryo floats.
Slide 14 - Slide
Explain how the embryo (and foetus) is protected.
Use the words: 'amnion', 'chorion', 'amniotic sac' and 'amniotic fluid'
Slide 15 - Open question
The third phase: foetus
After 2 months is the embryo is called a foetus.
The next 7 months the foetus will develop further into a fully grown baby.
So the umbilical cord is the connection between the mother and the child. Different substances can pass from mother to child through the umbilical cord, like alcohol, drugs and even some virusses.
Slide 16 - Slide
Match the different names with the different stages!
Stage in which implantation happens
Month 2-9: development into a baby
Slide 17 - Drag question
Slide 18 - Video
After .... weeks of pregnancy the embryo is called foetus
Slide 19 - Quiz
Pregnany lasts for ... weeks after fertilisation
Slide 20 - Quiz
The earliest moment a neonatal can be given birth to is after ... weeks of pregnancy