Guess the topic of this lesson from the following video clip

Слайд 2

http://www.youtube.com/watch?v=ECVT0MymH5o&feature=related Guess the topic of this lesson from the following video clip.

http://www.youtube.com/watch?v=ECVT0MymH5o&feature=related

Guess the topic of this lesson from the following video

clip.
Слайд 3

When a girl goes through puberty one of the changes that

When a girl goes through puberty one of the changes that

occurs is that she will begin to have periods.
This is the female body’s way of preparing to reproduce
A woman’s reproductive system works on a 28 day cycle
This cycle is known as the
menstrual cycle
The menstrual cycle consists of
A number of stages
In this lesson we will learn what
those stages are.....
Слайд 4

Day 1 – 7 The menstruation cycle starts with the first

Day 1 – 7
The menstruation cycle starts with the first day

of a woman’s period. This is the name given to the time of the month when the lining of the uterus comes away and exits through the vagina as blood.
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Day 7 - 13 Around day 7 the blood flow stops.

Day 7 - 13
Around day 7 the blood flow stops.
The

lining of the uterus begins to build up again.
At this time an egg starts to mature in one of the ovaries
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Day 14 (The Middle) On the 14th day which is the

Day 14 (The Middle)
On the 14th day which is the middle

of the cycle, an egg is released by an ovary into the oviduct.
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Day 14 - 17 The egg can last up to 3

Day 14 - 17
The egg can last up to 3 days

after it is released from the ovary.
During this time the egg travels down the oviduct and into the uterus hoping to be fertilised.
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Day 18 - 28 If the egg is not fertilised then

Day 18 - 28
If the egg is not fertilised then the

lining of the uterus begins to break down.
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Day 1 – 7 The cycle starts over again expelling the

Day 1 – 7
The cycle starts over again expelling the lining

of the uterus and the egg.
Remember this is known as a period or menstruation.

The cycle starts over again...

Слайд 10

Анализ графика

Анализ графика

Слайд 11

Анализ графика

Анализ графика