TTO 1 introduction moving Nectar unit 2

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

The skeleton

Today's objectives:

- functions

- types

- names

Do all organisms have a skeleton?

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

5 main functions

*Stability

*Protection of vital organs

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

Which assignments do you still have to do?

What kind of skeleton does a snake have?

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

What kind of skeleton does this blue caterpillar have?

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

4 basic parts

- skull: protect the brain

- spine: carry body weight + protect spinal cord

- rib cage: protect lungs + heart

- limbs: arms & legs for motion

What is not a function of the skeleton?

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

Animals with an exoskeleton can

1. not grow
2. grow
3. only grow when they moult
4. only grow once

Animals with an endoskeleton have muscles outside/inside their bones.

1. outside
2. inside

Let's have a look inside the bone.

Tissue type

- cartillage:

tough, semi-transparant, elastic and flexible

- bone:

hard & (less)flexible

Name this type of tissue.

1. Cartilage
2. Bone

Name this type of tissue.

1. Cartilage
2. Bone

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

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

In which part of the skeleton are both type of bones almost equally shared?

1. Limbs
2. Skull
3. Rib cage
4. Spine

The joints

Learn by heart

Motion

Name the type of joints(pg 56).
1:
2:
3:

Antagonists

Any questions?

http://www.abcya.com/skeletal_system.htm 

The skeleton

Today's objectives:

Injuries & posture

https://www.youtube.com/watch?v=EbHyq3RwtxI 

Last wk: - bone types - joints - muscles

Your sport

Your injuries

Which is the most common injury in this country?

1. Anckle
2. Tibula
3. Knee
4. Shoulder

How can you prevent injuries?

1. Do not do sports
2. Warm ups & cool downs
3. Practice sports a lot
4. Protective gear

Injuries & fractures

X-ray (clip class 1)

Plaster

Pulled muscle