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1. The Skeletal System
Ms. Rasmussen
Physical Education
Grade 7
This presentation was adapted from Nemours ideas:
http://kidshealth.org/kid/
And National osteoporosis foundation:
http://nof.org/exercise

3. Think Quick
• What do you do everyday that requires
the use of your skeletal system?

4. The Function of Bones
• There are 3 major functions of the bones:
1. Allow the body to move
2. Protect vital organs
3. Produce blood cells in the marrow

5. Allows the Body to Move
• Muscles are attached to
bones.
• Muscles pull on bones so we
are able to move.
• Muscles wouldn’t be able to
move us and do their job
without the help of bones.

6. ProtectsVital Organs
• In order for your internal organs to stay healthy and functional,
they need to be protected.
• Bones are like body guards.
• For example, the ribs help to protect organs such as your heart
and lungs which are vital to survival.

7. Produces Blood Cells in Marrow
• When oxygen travels through the body, it is transported by red
blood cells which are made in the bones.
• Oxygen is needed for us to survive.

8. Think Quick
What do bones need in order to be
functional AND healthy?

9. Healthy and Strong Bones
• Bones need calcium to stay strong and functional.
• The best way for you to get more calcium in your diet is by drinking
more milk.
• Exercise keeps your muscles strong which also keeps your bones in
use.
• Continuing to stay active will limit bone deterioration.
• Participating in physical activity is linked to the growth of stringer
bones.

10. Exercises for Strong Bones
• There are 2 types of exercises for maintaining and building strong
bones
1.Weight bearing
- Dancing, hiking, jogging/running, tennis
2. Muscle-strengthening exercises
- Lifting weights, exercise bands, weight machines, standing and
lifting toes

11. Bones andYou
• It is important to
know where your
bones are and what
they do so that you
can be aware of
how to make them
stronger and
healthier for longer.
• What can you do
more of to make
your bones happy
and healthy?

12. Now get out there and exercise those bones!!