L1: Functions of the Skeleton

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 1

Unit 4: Support and locomotion

How many bones does the human skeleton have?

1. 406
2. 206
3. 270
4. 311

During this unit:

*We are going to look at the skeleton:

- function and types

- bones, joints and muscles

- comparing skeletons of different animals

*Evolution

'Puzzle' crocodile

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1. The skeleton - make the assignments 

Why do we have a
skeleton?
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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. Storage minerals and fat 

SHAPE

• WE CAN'T STAND UP STRAIGHT OR EVEN LIFT OUR HEAD WITHOUT OUR BONES.

• WITHOUT THEM WE WOULD BE A PUDDING. 

MOVEMENT

• BECAUSE OUR MUSCLES PULL ON BONES AND THE BONES THEN MOVE.

• OUR MUSCLES ARE ATTACHED TO THE BONES WITH TENDONS.

PROTECTION

• IMPORTANT ORGANS ARE PROTECTED BY BONES.

• LIKE YOUR LUNGS, HEART AND BRAIN 

STORAGE

• STORAGE OF FAT AND MINERALS  

QUIZ TIME!

What allows your body to move?

1. Only bones
2. Bones and muscles together
3. Only muscles

All the bones in your body together form:

1. skull
2. skeletal system
3. backbone

What is the main function of your skull?

1. protection
2. movement
3. support
4. blood cell production

The skeleton of an adult human consists of approximately:

1. 500 bones
2. 350 bones
3. 206 bones
4. 150 bones

Tussen de wervels zitten:

1. kraakbeenschijven
2. schokwervels
3. beenschijven
4. wervelschijven

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2. Skeletons of other animals  - make the assignments