4.4 joints that make you move

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

Joints that make you move

Skull

Pelvis

Scapula / Shoulderblade

Humerus

Vertebral Column

Knee cap

Tibia / shinbone

Femur / thighbone

Ulna

Radius

Ribs

Without collagen..

1. your bones break faster
2. your bones bend better
3. your bones will fall apart
4. you don't have bones

Why is there 'collagen' in our bones?

1. Flexibility
2. Rigidity
3. To stay young
4. There's no collagen in our bones

Calcium phosphate ...

1. Bends easily
2. is strong and rigid

This tissue contains a lot of collagen.

1. bone
2. cartilage

Do the bones of older people have more collagen?

1. yes
2. no

joints

• necessary for movement
• located at places where bones meet

Where do we have joints?

different types of joints

immovable or fibrous joints

slightly movable or cartiliganous joints

freely movable or synovial joints

immovable joint

cartilaginous joints

Synovial joints

- Bigger joints 

- to help with movement

         - cartilage

         - synovial fluid (made by synovial membrane)

Hinge joint

Moves in one direction

ball and socket joint

pivot joint

rotating movement in one direction

Hinge joint

gliding joint

pivot joint

ball and socket joint

joints

- 2 bones together

- head and socket (page 102)

Hernia 

read page 103

explain to your neighbour what a hernia is

we will talk about it a little

fused joints

- sacrum (used to be vertebrae)

- coccyx

- skull

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