TTO opendag pascal college 2021

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

The skeletal system

3 kinds of skeletons

What kind of skeleton does a jellyfish have?

1. Endoskeleton
2. Exoskeleton
3. Hydrostatic skeleton
4. Just its skin

What kind of skeleton does a snake have?

1. Endoskeleton
2. Exoskeleton
3. Hydrostatic skeleton
4. Just its skin

Skeleton

Organ system: Skeletal system

Organs: Bones

Tissues: Cartilage, bone, Marrow

Cells: Bone cells
Other: Calcium, collagen, blood vessels 

Why do we have a
skeleton?
(looking for 5 best answers)

5 main functions

*Stability

*Protection of vital organs

*Shape
*Production of blood cells
*Movement (with muscular system)

What is not a function of the skeleton?

1. Strength
2. Stability
3. Production of blood cells
4. Stability

Let's have a look inside the bone.

Bone under the microscope

Experiment: Bones 

What are bones made of?

• Collagen: Flexibility
  
• Calcium: Hard
  

 

What happened during the experiment?