CLIL Course Ireland

• Biologie
• Voortgezet speciaal onderwijs
• Leerroute 6

the Skeleton

Bones and cartilage

The skeleton consists out of 2 types of tissue: 

Bone and cartilage 

But..

What are bones made of?

Structure of bones

Bones exist out of calcium phosphate and collagen. 

Calcium phosphate makes the bone strong and rigid.

Collagen makes the bone flexible

Changes of bone tissue

The skeleton of a baby consists mostly of cartilage tissue.

During growth, most of the cartilage changes to bone.

When you get older:

--> Amount of collagen decreases

--> amount of calcium phosphate increases.

baby is flexible because they have a lot of collagen in their bones

Old people break bones easier because they have less collagen.

Based on what you've learned, make fitting text, include the word collagen

Based on what you've learned, make fitting text, include the word collagen

Skeleton

3 groups

Draw 3 bones (2 minutes)

The functions of the skeleton

- Giving firmness, standing upright

- Give protection to organs

- Enable movement

- Giving shape

- Another 5th function: making blood cells

CLIL Course Ireland