L1: Functions of the Skeleton

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

Topic 2: Skeleton and Evolution

During this topic:

*We are going to look at the skeleton:

- function and types

- bones, joints and muscles

-comparing skeletons of different animals

What do you NOT know about your skeleton

How many bones does the human skeleton have?

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

Types of skeletons

What kind of skeleton does a snake have?

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

What kind of skeleton does a jellyfish have?

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

What kind of skeleton does this golden jewel beetle have?

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

All skeletons have their own weight. What is the correct order from heavy to light?

1. exo - hydro - endo
2. exo - endo - hydro
3. endo - exo - hydro
4. hydro - endo - exo

What is the main function of your skull?

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

Name four functions of the skeleton

Work

On classroom choose 1 of the 3 assigments 

• 1: the bald eagle (Easy)
• 2: the damselfly (Medium)
• 3: the octopus (Difficult)

Why is it good that your backbone has an S-shape

1. The S-shape makes it easier to bend
2. The S-shape can absorb shocks
3. The S-shape brings our head forward
4. The S-shape is a nice shape

Where should the top of your backbone be when you sit
(when looking down from above).

1. above my knees
2. behind my tailbone
3. straight above the center of my hips
4. above my buttocks

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

End of quizz

You did great! 

You can finish ex 1-6 in 20 minutes.

Something to remember

Endo = Within / Inside

Exo = External / outside

Hydro=water