L2 + 3: the skeleton and joints

Unit 4:
Support and locomotion 
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Slide 1: Slide
BiologieMiddelbare schoolvwoLeerjaar 1

This lesson contains 33 slides, with interactive quizzes and text slides.

time-iconLesson duration is: 30 min

Items in this lesson

Unit 4:
Support and locomotion 

Slide 1 - Slide

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How many bones does the human skeleton have?
A
406
B
206
C
270
D
311

Slide 2 - Quiz

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During this unit:
We are going to look at the skeleton:
- function and types
- bones, joints and muscles
- comparing skeletons of different animals


Slide 3 - Slide

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Slide 4 - Slide

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Why do we have a
skeleton?
=



Slide 5 - Mind map

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4 functions of the skeleton
  1. Support: keeps the body up and keeps organs in place
  2. Movement: by using muscles
  3. Protection: keeps soft inner organs safe
  4. Production of blood cells

Slide 6 - Slide

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Types of skeletons

Slide 7 - Slide

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Something to remember
Endo = Within / Inside
Exo = External / outside
Hydro= Water

Slide 8 - Slide

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What kind of skeleton does a snake have?
A
Endoskeleton
B
Exoskeleton
C
Hydrostatic skeleton
D
Just its skin

Slide 9 - Quiz

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What kind of skeleton does a jellyfish have?
A
Endoskeleton
B
Exoskeleton
C
Hydrostatic skeleton
D
Just its skin

Slide 10 - Quiz

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What kind of skeleton does this golden jewel beetle have?
A
Endoskeleton
B
Exoskeleton
C
Hydrostatic skeleton
D
Just its skin

Slide 11 - Quiz

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All skeletons have their own weight. What is the correct order from heavy to light?
A
exo - hydro - endo
B
exo - endo - hydro
C
endo - exo - hydro
D
hydro - endo - exo

Slide 12 - Quiz

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What is the main function of your skull?
A
protection
B
movement
C
support
D
blood cell production

Slide 13 - Quiz

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The structure of the human skeleton

Slide 14 - Slide

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Planning
- Demo bones (collagen & calcium phosphate)
- Repeat BS 2 The structure of bones
- Get to work (assignments 1, 2, 3, 5, 6, 7)

Slide 15 - Slide

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What makes bone flexible?
A
collagen
B
calcium
C
cartilage

Slide 16 - Quiz

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What substance makes bone strong?
A
collagen
B
calcium phosphate
C
cartilage

Slide 17 - Quiz

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FUNCTIONS OF THE SKELETON:
  • SUPPORT
  • MOVEMENT
  • PROTECTION
  • BLOOD CELL PRODUCTION

Slide 18 - Slide

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comparing skeletons
The skeleton can tell us something about 
-where an animal lives
- what it eats
- what it looked like in the past

Slide 19 - Slide

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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 20 - Slide

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Get to work
Unit 4 basic 2 the structure of bones 
Som -> leermidd. -> biology for you -> 1 Havo/vwo TTO ed. MAX

Assignments 1, 2, 3, 5, 6, 7


Next lesson? BS 3 joints (gewrichten)

Slide 21 - Slide

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The human skeleton and joints

Slide 22 - Slide

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bs 3 joints
  • necessary for movement
  • located at places where bones meet

Slide 23 - Slide

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Sutures 
(=naadverbinding)
  • Baby's skull are not yet fused
  • Fontanel: space between skull bones
  • Schedelbeenderen groeien aan elkaar: sutures
  • Fontanelles close up after about 18 months

Slide 24 - Slide

Baby's worden geboren met losse schedelbeenderen. De ruimte tussen de schedelbeenderen heten fontanellen.
Immobile   --    Mobile
Connection between seperate bones
1. Fused vertebrae
2. Sutures
3. Cartilage
4. Joints

Slide 25 - Slide

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Slide 26 - Slide

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Hinge joint
Moves in one direction

Slide 27 - Slide

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ball and socket joint

Slide 28 - Slide

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gliding joint

Slide 29 - Slide

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pivot joint
rotating movement in one direction

Slide 30 - Slide

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fixed joint

Slide 31 - Slide

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Hinge joint
gliding joint
pivot joint
ball and socket joint

Slide 32 - Drag question

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(home)work
Read basics 4 joints
Make exercise 13, 14 en 15

Slide 33 - Slide

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