Skeletal system

• Biologie
• Middelbare school
• vmbo t
• Leerjaar 1

The skeleton

Today's objectives:

- functions

- types

- names

Last wk: handouts/worksheet on the names.

5 main functions

*Stability

*Protection of vital organs

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

3 kinds of skeletons

Some characteristics

Endo - on the inside, grows easily, normal weight.
Exo - on the outside, cannot grow, very heavy

Hydro - on the outside, grows easily, filled with water, very light (sort of skin)

3 skeletons: Endo - Exo - Hydro - skeleton

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 kind of skeleton does a snake have?

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

What is not a function of the skeleton?

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

What kind of skeleton does this blue caterpillar have?

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

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

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

Any questions?

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

The skeleton

Today's objectives:

- bone types

- joints

- muscles

Last wk: - functions - types - names

Let's have a look inside the bone.

Bone type

- cartillage:

tough, semi-transparant, elastic and flexible

- bone:

hard & (less)flexible

Name this type of bone.

1. Cartilage
2. Bone

Name this type of bone.

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:

Read hand-out pg 58/59.
What's the difference between voluntary & involuntary muscles?

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

Any questions?

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

 http://kidshealth.org/classroom/prekto2/body/parts/bones_quiz.pdf

https://www.youtube.com/watch?v=PGE7oLFDf7o 

   
     
     
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          Dit wordt getoondin de klassikale leswanneer je op'geef les' klikt.
       
     
   

   
   
     
       
          Dit wordt getoondin de gedeelde les dieleerlingen zelfstandigkunnen doen.
       
     
   

   
     
       
          Differentiëer
       
     
     

       
         
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            Instellingen
         
       
     
   

   
   
     
 
   
   
   
 
 
   
   
   
     
       
       
       
 
   
   
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