Our body has 206 bones, that work together for three main reasons:
1. Giving our body solidity.
2. Protecting important organs
3. Making movement possible
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Spine
Your spine can be considered to be the most important group of bones, as it is the framework for your whole body, and has the spinal cord running through it.
It consists of vertebra, with a intervertebral disc consisting of cartilage in between them.
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Spine
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Posture
To protect your back against wear, it is important to have your spine in a double s shape as much as possible. You do that by being aware of your posture (while you sit or lift).
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Posture while sitting
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Posture while standing
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Posture while lifting
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Time to work!
The homework for next lesson is the exercises of paragraph 4.2. You can work on that right now.
Lesson duration is: 60 min
