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Lesson 2: the menstrual cycle
Instruction biology
Test week: postpone test unit 3 circulatory system
after the lockdown
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Slide 1:
Slide
Biologie
Middelbare school
vwo
Leerjaar 1
This lesson contains
20 slides
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interactive quizzes
,
text slides
and
1 video
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Lesson duration is:
45 min
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Items in this lesson
Instruction biology
Test week: postpone test unit 3 circulatory system
after the lockdown
Slide 1 - Slide
What have you discussed last lesson?
Slide 2 - Slide
Uterus
Fallopian tube
ovary
Urinary bladder
Urethra
Vagina
Slide 3 - Drag question
fact
fake
Girls carry all egg cells since birth in their ovaries
all healthy women have a menstrual cycle
the menstruation blood contains an egg cell
the length of the menstrual cycle differs per individual
the average age for the first menstruation is 11 years
Slide 4 - Drag question
Reproduction
Lesson 2: The menstrual cycle
Slide 5 - Slide
Learning goals lesson 2
You can explain what is happening during the 4 phases of the menstrual cycle
You know which hormones are involved in the menstrual cycle
Slide 6 - Slide
What is menstruation?
Release of blood from the uterus (uterus lining) through the vagina
Start around age 12
Slide 7 - Slide
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 8 - Slide
Slide 9 - 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 10 - Slide
4 Phases
Phase 3: Ovulation (day 13-15)
A new egg cell (ova) is released and send down the oviduct (fallopian tube)
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 11 - Slide
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 12 - Quiz
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 13 - Quiz
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 14 - Quiz
On which day in the cycle does ovulation occur?
A
Day 1
B
Day 14
C
Day 20
D
Day 28
Slide 15 - Quiz
What is shed during the menstruation of a female?
A
The ovaries
B
The egg cell
C
The uterus lining
D
Nothing
Slide 16 - Quiz
The cycle is for everyone the same. It is always 28 days.
A
True
B
False
Slide 17 - Quiz
How long does an released egg cell survive?
A
15 days
B
4 days
C
about an hour
D
1-2 days
Slide 18 - Quiz
How do we call the release of an egg cell into the oviduct?
A
Fertilization
B
Ovulation
C
Pregnancy
D
Contraceptive
Slide 19 - Quiz
Start working!
Do exercise 13-16
Slide 20 - Slide
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