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Learnbeat BS. B Bones and Cartilage SRN
Learnbeat unit:
Movement
B. Bones and cartilage
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Slide 1:
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Biologie
Middelbare school
vwo
Leerjaar 1
This lesson contains
19 slides
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interactive quizzes
and
text slides
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Lesson duration is:
30 min
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Items in this lesson
Learnbeat unit:
Movement
B. Bones and cartilage
Slide 1 - Slide
How many bones does the human skeleton have?
A
406
B
206
C
270
D
311
Slide 2 - Quiz
Why do we have a
skeleton?
=
Slide 3 - Mind map
Functions of the skeleton
Support: keeps the body up and keeps organs in place
Movement: by using muscles
Protection: keeps soft inner organs safe
Storage of minerals and fats
(Production of blood cells)
Slide 4 - Slide
What is the main function of your skull?
A
protection
B
movement
C
support
D
blood cell production
Slide 5 - Quiz
Today's planning
- Learnbeat B. Bones and cartilage
- Making some assignments
- Demo bones (collagen & calcium phosphate)
- Using the microscope
Slide 6 - Slide
Skeleton
Slide 7 - Slide
Skeleton
Consist of 3 parts: head, torso, limbs
Has two different types of tissue:
- Bone tissue
(botweefsel)
- Cartilage tissue
(kraakbeenweefsel)
Slide 8 - Slide
Movement
§2 Bones & Cartilage
Slide 9 - Slide
Bones
Give strength, let us move and stand upright
Contain
calcium phosphate
and a bit of
collagen
Slide 10 - Slide
Cartilage
Firm, but very flexible.
Contains a lot of
collagen
Protects bones from damage and makes sure movement is possible.
Slide 11 - Slide
Bone tissue
Cartilage tissue
Slide 12 - Slide
Cartilage tissue (kraakbeenweefsel):
- cellen in groepjes bij elkaar
- elastische tussencelstof
- vooral collageen
Bone tissue (botweefsel):
- cellen in kringen om bloedvaatjes
- harde tussencelstof
- vooral kalkzouten en collageen
Slide 13 - Slide
A change in bone tissue
When younger --> more collagen, less calcium phosphate in bones
When older --> more calcium phosphate, less collagen in bones
Welke grafiek is dan juist?
Slide 14 - Slide
What makes bone flexible?
A
collagen
B
calcium
C
cartilage
Slide 15 - Quiz
What substance makes bone strong?
A
collagen
B
calcium phosphate
C
cartilage
Slide 16 - Quiz
comparing skeletons
The skeleton can tell us something about
-where an animal lives
- what it eats
- what it looked like in the past
Slide 17 - Slide
Protection
Sommige delen van het lichaam bieden bescherming.
Welke delen denk jij?
Schedel: klopt!
De schedel beschermt de hersenen
tegen botsingen, als een helm.
Nekwervels: klopt!
Ze beschermen de
zenuwen
van en naar de hersenen.
Borstkas: klopt!
Dit beschermt de zachte en weke
ingewanden
zoals het hart, de darmen en de longen. Anders zou alles uit je lichaam zakken! Jakkes!
Botten: nee
Dit geeft stevigheid aan het lichaam. de speieren zitten aan de botten vast, en zo kunnen de botten bewegen.
(Hoef)nagels: klopt!
De nagels beschermen de poten tegen beschadiging en verwonding.
Bij sommige dieren zijn de nagels zelfs een wapen!
Slide 18 - Slide
Get to work
Slide 19 - Slide
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