Refresher lesson

Unit 4: Reproduction
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Slide 1: Tekstslide
BiologieMiddelbare schoolvwoLeerjaar 3

In deze les zitten 45 slides, met interactieve quizzen, tekstslides en 5 videos.

time-iconLesduur is: 45 min

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Unit 4: Reproduction

Slide 1 - Tekstslide

Planning for today
  •  Make this 'refresher lessonup'. 

Done? 

  •  Check if you've made all the homework exercises.

Slide 2 - Tekstslide

Basic 1: You are changing
*You can name some things that are changing during puberty
*You understand that everyone develops at their own pace
*You can tell if something is a primary or secondary characteristic 

Slide 3 - Tekstslide

you are changing
During puberty you change a lot. Especially on the following levels:
1. Physical 
2. Emotional 
3. Social 

The features of people that tell us their gender are called sexual characteristics.

Slide 4 - Tekstslide

Physical changes of the woman
The sexual characteristics present at birth are called the primary sexual characteristics:
- Vagina and labia
Ovaries.

The sexual characteristics that start appearing from about the age of ten onwards are called: The secondary sexual characteristics 
- Breasts have grown,
- Wider hips
- Reproductive organs will start to function.

Slide 5 - Tekstslide

Physical changes in men
The primary sexual characteristics:
- Penis and scrotum
- Testes

The secondary sexual characteristics:
- More muscular body,
- Deeper voice, 
- Beard and chest hair
- Reproductive organs will start to function.

Slide 6 - Tekstslide

Physical changes during puberty don't happen all at once. 

Everyone develops on their on pace.

There is no need to worry if you are a bit later or earlier than the average!




Slide 7 - Tekstslide

Emotional changes
Your emotional view of the world also changes during puberty. 

Your feelings change and you become more independent. 

You also start thinking more about: relationships, friendships, love, sex, etc.

Slide 8 - Tekstslide

Social changes
You social view of the world changes too.  

Your attitude towards your parents changes; you don't want to be treated like a child anymore / you want to be more independent.

You might want to hang out with different people.




Slide 9 - Tekstslide

Slide 10 - Video

PRIMARY SEXUAL CHARACTERISTICS
SECONDARY SEXUAL CHARACTERISTICS
a penis
a vagina
a beard
breasts

Slide 11 - Sleepvraag

Basic 2: the male reproductive system

Slide 12 - Tekstslide

External male reproductive system
  1.  Testes: Makes the sperm cells
  2. Scrotum: Protects testes and has a lower temperature, which is good for sperm cell production. 
  3. Epididymis: Temporary storage for sperm cells.
  4. Sperm duct: Transports the sperm cells.

Slide 13 - Tekstslide

External male reproductive system
5. Seminal vesicle: Adds fluid with nutrition to the sperm cells. 
6. Prostate: adds fluid to sperm cells. 
Fluids + sperm cells =  called semen.
7. Urethra: Transports urine + semen to outside.


Slide 14 - Tekstslide

Sperm cells + ejaculation
Sperm cells are the men's sex cells. 

A single ejaculation contains 100 to 400 million sperm cells.

A spermcell has a tail called flagellum, this helps it move.

Ejaculation gives a man an orgasm/climax.
Sperm cells survive up to 3 days within a woman.

Slide 15 - Tekstslide

Hormones 
Hormones play an important role in the making of sex cells.

Hormones are substances that control many processes.

During puberty the pituitary glad starts to process certain hormones.


Slide 16 - Tekstslide

Erection
The purpose of the penis is placing sperm cells inside the woman. 
A penis can become bigger and stiff. This is called an erection

The erectile tissue in the penis fills up with blood. 


Slide 17 - Tekstslide

Testes 
Sperm duct 
Epididymis 
Bladder 
Erectile tissue 
Prostate 
Urethra 

Slide 18 - Sleepvraag

B3: the female reproductive system

Slide 19 - Tekstslide

0

Slide 20 - Video

external female reproductive system
External part of the female reproductive system is called the vulva.

Clitoris: is the pleasure center of the vulva.

Inner labia: Glands in the inner labia produce mucus during sexual arousal. This lubricates the entrance of the vagina so the penis can slide in easier. 




Slide 21 - Tekstslide

Internal female reproductive system
1. Vagina: Where penis enters, where baby exits.
2. Uterus: Place where baby develops.
3. Fallopian tube: carrie egg cells (ovum) to the uterus. 
4. Ovary: Develops ova (sex cells). 

Slide 22 - Tekstslide

Uterus (baarmoeder)
Fallopian tube (eileider)
Ovary (eierstok)
Urinary bladder (blaas)
Urethra (urinebuis)
Vagina

Slide 23 - Sleepvraag

The video mentions 'ovum'. What is another word for this?

Slide 24 - Open vraag

Slide 25 - Video

Ovulation
  • Ovulation in Dutch = eisprong
  • Ovulation = when a ripe egg cell is released by the ovary
  • Happens every 4 weeks
  • One week left ovary, other week right ovary
  • Egg cell live for about 12 to 24 hours.

Slide 26 - Tekstslide

Where does fertilisation take place?
A
Ovary
B
Fallopian tube
C
Uterus
D
Vagina

Slide 27 - Quizvraag

Where does a baby grow?
A
Ovary
B
Fallopian tube
C
Uterus
D
Vagina

Slide 28 - Quizvraag

When people see a woman naked, the might say that they see her vagina. Why is this wrong?

Slide 29 - Open vraag

Fertilization - when sperm cell enters egg cell

Slide 30 - Tekstslide

Ovulation
Fertilization
Cell division
Implantation

Slide 31 - Sleepvraag

sperm cells
egg cells
very small
relatively large
cannot move
contain stored food
can move
do not have stored food
usually one ovum per 4 weeks
millions per ejaculation

Slide 32 - Sleepvraag

MALE PARTS
FEMALE PARTS
BOTH
URETHRA
VAGINA
PENIS
BLADDER
LABIA
GLANS
TESTICLES
UTERUS
OVARIES
CLITORIS
SCROTUM
PROSTATE

Slide 33 - Sleepvraag

Bs 4: Menstruation

Slide 34 - Tekstslide

Menstruation
When an egg is not fertilised, part of the uterus lining detaches. This is called menstruation.

Average age for girls to start their menstruation is 13.

Slide 35 - Tekstslide

Slide 36 - Video

The menstrual cycle
  • After the menstruation the uterus linings starts to grow thicker again and have more blood vessels.

  •  Ovulation starts +- around 14 days after the start of the last menstruation.

  • Next menstruation starts about 28 days after the start of the last one.

Slide 37 - Tekstslide

Egg cells survive for 1 day,
Sperm cells about 2 to 3 days in the uterus.

What days are the fertile period
(vruchtbare periode) for the woman?

Slide 38 - Open vraag

most used menstruation products

Slide 39 - Tekstslide

Tampons
Tampons are inserted into the vagina. 
They soak up the blood and mucus. 
Should be exchanged every 3 to 4 hours. 

Slide 40 - Tekstslide

pads
Pads are available in all kinds of shapes and sizes. 
The go into the woman's underwear and soak up any blood and mucus. 

Slide 41 - Tekstslide

Organicup
The organicup catches and blood and mucus. The picture shows how to insert it. 

You can empty and wash it every few hours.

Slide 42 - Tekstslide

These kind of underwear are still quite new

They catch the blood. You can wear them up to 8 hours and then wash them.

Slide 43 - Tekstslide

Slide 44 - Video

Done?
Check if you've made the following homework exercises:
Bs 1: 1,2,3,4
Bs 2: 5,6,7
Bs 3: 9,10,11,12
Bs 4: 13,14

Slide 45 - Tekstslide