Unit 4 bs 4: the menstrual cycle

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Slide 1: Slide
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This lesson contains 19 slides, with interactive quizzes, text slides and 1 video.

time-iconLesson duration is: 45 min

Items in this lesson

Get ready: 
-LessonUp
-Notes
-Biology book



Slide 1 - Slide

Reproduction
bs 4: The menstrual cycle

Slide 2 - Slide

Learning goals bs. 4
  • You can explain what is happening during the 4 phases of the menstrual cycle

Slide 3 - Slide

What is menstruation?
  • Release of uterus lining and blood from the uterus through the vagina
  • Start around age 12

Slide 4 - 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 5 - Slide

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 - Slide

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 - Slide

Slide 9 - 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 10 - 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 11 - 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 12 - Quiz

On which day in the cycle does ovulation occur?
A
Day 1
B
Day 14
C
Day 20
D
Day 28

Slide 13 - Quiz

What is shed during the menstruation of a female?
A
The ovaries
B
The egg cell
C
The uterus lining
D
Nothing

Slide 14 - Quiz

The cycle is for everyone the same. It is always 28 days.
A
True
B
False

Slide 15 - Quiz

How long does an released egg cell survive?
A
15 days
B
4 days
C
about an hour
D
1-2 days

Slide 16 - Quiz

How do we call the release of an egg cell into the oviduct?
A
Fertilization
B
Ovulation
C
Pregnancy
D
Contraceptive

Slide 17 - Quiz

Start working!
  • HW for next lesson - bs 4 Menstrual cycle exercise 13 t/m 15



Slide 18 - Slide

Any questions?

Slide 19 - Open question