4.2 your skeleton and your posture

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

Which bones do you
already know?

The skeleton

look at page 91 and lets try and memorize a few of the names. You get 5 minutes :-)

skull

tibia

femur

radius

humerus

vertebrae

sternum

vertebrae and intervertebral discs

- vertebrae stack together to form the spine/backbone

- the spinal cord (nervous system) goes through the spine

- the intervertebral discs are between the vertebrae (cartilage)

1. VERTEBRAE
2. CLAVICLE
3. MANDIBLE
4. SKULL

posture

position of your body (when you are sitting/standing/lying down)

Stay in double S-shape!

Why do we need intervertebral discs?

Double S-shape

cervical vertebrae

thoracic vertebrae (ribs attached)

lumbal vertebrae

sacrum

coccyx

how to sit

How to lift things

Keep your back in double S shape!

do excercise 17 

- together in pairs