3.5 the immune system

BS5 immune system
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Slide 1: Slide
BiologieMiddelbare schoolmavo, havo, vwoLeerjaar 2

This lesson contains 25 slides, with interactive quizzes, text slides and 2 videos.

time-iconLesson duration is: 50 min

Items in this lesson

BS5 immune system

Slide 1 - Slide

Start task
1. Copy the learning objectives below into your zuidschrift.

2. Write briefly: what are the three parts of a kidney?
Learning objectives, you can:
- explain how antibodies protect you against infections.
- explain how you can become immune.
- explain what happens during an allergy.
timer
8:00

Slide 2 - Slide

plan 
  1. Review of the kidneys
  2. Explanation of the immune system
  3. Do the assignments
  4. Homework
Leerdoelen, je kunt:
- uitleggen hoe antistoffen je beschermen tegen infecties.
- uitleggen hoe je immuun kunt worden.
- uitleggen wat er gebeurt bij een allergie.
Learning objectives, you can:
- explain how antibodies protect you against infections.
- explain how you can become immune.
- explain what happens during an allergy.

Slide 3 - Slide

Last lesson was about kidneys








What do the kidneys do?
What are the three parts of the kidneys?
timer
1:00

Slide 4 - Slide

Slide 5 - Slide

Urinary tract
In a kidney pelvis infection, the wall of a kidney pelvis is inflamed. This can be caused by bacteria that have entered the body through the urinary tract.
Through which parts did these bacteria pass, in the correct order?

Put in the right order: urethra, bladder, ureter, kidney pelvis.
timer
1:00

Slide 6 - Slide



Bij een nierbekkenontsteking is de wand van een nierbekken ontstoken. Dit kan worden veroorzaakt door bacteriën die via de urinewegen van buiten het lichaam zijn gekomen.
Door welke delen zijn deze bacteriën achtereenvolgens gekomen?
A
nierbekken > urineblaas >urinebuis > urineleider
B
urinebuis > urineblaas > urineleider > nierbekken.
C
urinebuis > urineleider >urineblaas > nierbekken.
D
urineleider > urinebuis > urineblaas > nierbekken.

Slide 7 - Quiz

Nierschors
Niermerg
Nierbekken
Nierader
Nierslagader

Slide 8 - Drag question

Slide 9 - Video

Foreign bodies
  • Foreign substances do not belong in your body.
  • Your body can stop foreign substances in three ways (keep them out!):
  • With the skin.
  • With the mucous membranes in the airways.
  • With hydrochloric acid in stomach juice.

-->How could bacteria still enter your body?

Slide 10 - Slide

Infection and defence








A pathogen (ziekteverwekker) has entered your body....

Luckily, you have a defence system (immune system)!
It fights pathogens.

Slide 11 - Slide

White blood cells
White blood cells are your own soldiers.
1. Encapsulating (insluiten)                   2.Producing antibodies
               

Slide 12 - Slide

Antigen
The immune system recognizes viruses and other pathogens by their antigens.

An antigen is a protein on the outside of a cell or a virus.


Slide 13 - Slide

enclosing the pathogen








Slide 14 - Slide

antibodies neutralise the 
pathogen








Slide 15 - Slide

immunity
You often only get sick once from a pathogen.
Your white blood cells can remember which antibodies to make.

That’s how you become immune (= not getting sick because white blood cells can quickly make the right antibody).

Slide 16 - Slide

immunity
You often only get sick once from a pathogen.
Your white blood cells can remember which antibodies to make.

That’s how you become immune (= not getting sick because white blood cells can quickly make the right antibody).

Slide 17 - Slide

immunity
Natural immunity: this happens when you have had the disease yourself (e.g. chickenpox)

Artificial immunity: this happens through vaccination.

Slide 18 - Slide

Vaccine

A substance that contains parts of a virus or bacterium (e.g. only the antigens) or a weakened version.

You don’t get sick, but your white blood cells get trained to quickly recognise and destroy the real pathogen!

Slide 19 - Slide

Slide 20 - Video

But why do you still often get a cold or the flu?









Some viruses almost never change, but unfortunately, some viruses change very quickly.








Slide 21 - Slide

Allergy
An allergy is a mistake in your immune system.
Your immune system reacts strongly to certain substances that are actually not dangerous (allergic reaction).

                                                                                                                       Anafylactische shock

Slide 22 - Slide

What
How
Hulp
.


Done?
Homework done!
1) book: text + figures blz. 211-215

use your notes + your book
- explain how antibodies protect you against infections.
- explain how you can become immune.
- explain what happens during an allergy.
timer
10:00
Do 1-4 and 6-8 (pp. 215-217)

Slide 23 - Slide

What
Maak opdrachten t/m 9 
blz 218-221
Hoe
Hulp
.


Done?
1. Nakijken en verbeteren (classroom)
2. Test jezelf 3.4 + flitskaarten in Bvj online.
1) boek: tekst en afbeeldingen van blz. 214-217 
2) buur  
3 ) docent
Je mag fluisterend samenwerken met je buur. 
Gesprekken gaan alleen over de opdrachten.
- uitleggen hoe antistoffen je beschermen tegen infecties.
- uitleggen hoe je immuun kunt worden.
- uitleggen wat er gebeurt bij een allergie.
timer
10:00

Slide 24 - Slide

Wat heb je geleerd?

Slide 25 - Mind map