How movement comes about

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

Organism of the week

How movement comes about

§2 The skeleton

The human skeleton

There are a lot of bones: ±200

All bones together --> Skeletal system

What is the function of our skeleton?

Skeleton

Skeleton

Bone & Cartilage tissue

3 parts: head, torso, limbs

Skull (head)

Spinal column/Backbone (torso)

Arm (limb)

Legs (limb)

Make assignments §2

On Learnbeat!

How movement comes about

§3 Bones & Cartilage

Bones

Give strength, let us move and stand upright

Contain calcium phosphate and a bit of collagen

Cartilage

Firm, but very flexible

Contains collagen

Protects bones from damage

Bone tissue

Cartilage tissue

A change in bone tissue

When older --> more calcium phosphate, less collagen in bones

Make assignments §3

What have you learned during the practical?

Make a picture of your cartilage tissue drawing

Make a picture of your bone tissue drawing

Organism of the week

What is the result of more calcium phosphate and less collagen in bones?

How movement comes about

§4 Bone connections

Bone connections

Joints

Homework

Assignments §4 on Learnbeat!

How many types of bone connections are there in your body

1. 2
2. 3
3. 4
4. 5

Which type of joint can move in all possible directions

1. Ball-and-socket joint
2. Hinge joint
3. Pivot joint
4. Radioulnar joint

Which type of joint moves from left to right?

1. Ball-and-socket joint
2. Hinge joint
3. Pivot joint
4. Radioulnar joint

How movement comes about

§5 Muscles

Movement of bones

Muscles are used for bone movement

Attached to bones with tendons

Can be voluntary or involuntary

Voluntary movement

Involuntary movement

Muscular system

Antagonistic pair

1 muscle contracts & 1 muscle relaxes

Biceps-triceps

Homework

Make assignments §5