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Unit 4 bs 2: the menstrual cycle
Today's planning
- Repeat BS 2 part 1
- BS 2 part 2
- Rode koffer
Have ready
- Notes
-Biology book
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Slide 1:
Tekstslide
Biologie
Middelbare school
vwo
Leerjaar 1
In deze les zitten
19 slides
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interactieve quizzen
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tekstslides
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1 video
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Lesduur is:
45 min
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Today's planning
- Repeat BS 2 part 1
- BS 2 part 2
- Rode koffer
Have ready
- Notes
-Biology book
Slide 1 - Tekstslide
Reproduction
BS 2: A woman part 2
The menstrual cycle
Slide 2 - Tekstslide
Learning goals BS. 2
You can describe the menstrual cycle
Slide 3 - Tekstslide
What is menstruation?
Release of uterus lining and blood from the uterus through the vagina
Start around age 12
Slide 4 - Tekstslide
How does it happen?
Hormones estrogen en progesterone build up uterus lining
Fertilized egg could attach to this
No fertilized egg? --> Lining is shed
cylce: it happens over and over again (450 times in a life time)
Slide 5 - Tekstslide
Slide 6 - Video
4 Phases
Phase 1 (day 1-5) :
menstruation
Uterus lining is shed through the vagina (no fertilized egg)
Phase 2 (day 6-12):
repair phase
uterus lining build new layer of mucus
new egg cell develops in the ovary
Slide 7 - Tekstslide
4 Phases
Phase 3:
Ovulation
(day 13-15)
A new ova is released and send down the oviduct
Phase 4:
Receptive phase
(day 16 - 28)
Uterus lining grows to form a 'nest' for the egg cell
No fertilized egg cell? --> cycle starts again!
Slide 8 - Tekstslide
Slide 9 - Tekstslide
What determines the beginning of the menstruation cycle?
A
Release of blood through the vagina
B
The release of the egg cell from the ovaries
C
The growing of the uterus lining
D
The cycle can start anytime
Slide 10 - Quizvraag
In which part of the female reproductive system do the ova (egg cells) develop?
A
Fallopian tube/Oviduct
B
Ovaries
C
Uterus
D
Vagina
Slide 11 - Quizvraag
In which part of the female reproductive system does the fertilised egg cell grow into a baby?
A
Fallopian tube/Oviduct
B
Ovaries
C
Uterus
D
Vagina
Slide 12 - Quizvraag
On which day in the cycle does ovulation occur?
A
Day 1
B
Day 14
C
Day 20
D
Day 28
Slide 13 - Quizvraag
What is shed during the menstruation of a female?
A
The ovaries
B
The egg cell
C
The uterus lining
D
Nothing
Slide 14 - Quizvraag
The cycle is for everyone the same. It is always 28 days.
A
True
B
False
Slide 15 - Quizvraag
How long does an released egg cell survive?
A
15 days
B
4 days
C
about an hour
D
1-2 days
Slide 16 - Quizvraag
How do we call the release of an egg cell into the oviduct?
A
Fertilization
B
Ovulation
C
Pregnancy
D
Contraceptive
Slide 17 - Quizvraag
Start working!
HW for next lesson - bs 2 Menstrual cycle exercise 13 t/m 15
Slide 18 - Tekstslide
Any questions?
Slide 19 - Open vraag
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