Unit 2 Moving Lesson 1

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

UNIT 2: MOVING LESSON 1

2.1 Bones

You will learn:

- the names of your bones

- the 6(!) functions of the skeleton

- how bones are constructed

- why children move easily

- the functions of your backbone

List functions of the skeleton (answers
seperated by comma's)

6 main functions

*Stability/support

*Protection of vital organs

*Shape

*Movement (with muscular system)

* Storage of fat in long bones (in yellow bone marrow)

*Production of blood cells in flat bones (in red bone marrow)

4 basic parts of the skeleton:

- skull: protects the brain

- spine: carry body weight + protect spinal cord

- rib cage: protect lungs + heart

- limbs: arms & legs (+ muscles) for motion

!!

What is not a function of the skeleton?

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

www.bioplek.org

www.abcya.com

Let's have a look inside the bone.

Tissue type

- cartillage:

tough, semi-transparant, elastic and flexible

- bone:

hard & (less)flexible

10 minutes to study

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

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

Why do you have less bones than a baby?

Cartilage plays an important role in the skeleton

Functions?

Now it is up to you:

2.1 Complete assignment: 2-5 + 7, 9, 10, 11, 12, 17 & 18