4.3 Materials of the skeleton

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

Recap Jointed Skeleton

Which 4 tissue types do we have in our body?

Bone.                                        Cartilage

tissue types

bone and cartilage are made up out of connective tissue

cartilage flexible 

bone hard

Name this type of bone.

1. Cartilage
2. Bone

Name this type of bone.

1. Cartilage
2. Bone

Which tissue is this?

1. Bone tissue
2. Cartilage tissue
3. Nervous tissue
4. connective tissue

Where do you find more cartilage bone in the human body?

1. Skull
2. Femur
3. Ear
4. Humerus

Let's have a look inside the bone.

Layers of the bone

1. Periosteum

-membrane that contains nerves and blood vessels (new bone cells are made here)

2. Compact bone

3. Spongy bone

4. Bone marrow (in the flat bones it produces blood cells)

Experiment: Bones 

What are bones made of?

• Collagen: Flexibility
  
• Calcium: Hard
  

 

What happened during the experiment? 

Bones 

What are bones made of?

• Collagen: Flexibility
  
• Calcium & Phosphorus: Hard
  

Bone = hard and solid

Cartilage = soft and rubbery 

renewing and repairing bone

osteoclasts:  break down bone

osteoblasts: make new bone

What happens after you break your arm?

which cell breaks down old bone?

1. osteoclasts
2. osteoblasts
3. osteocytes

which cell type makes you grow taller?

1. osteoclasts
2. osteoblasts
3. osteocytes

explain how kids grow. Use the words growth plate, cartilage, new bone cells