1. My muscles move my body like strings move a puppet.
My Muscular System
My muscles move my body
like strings move a puppet.

2. The muscular system is made up of…
muscles
and
tendons

3. What are muscles??
Muscle-an organ that contracts and gets shorter- this provides the force to move your body parts.

4. How many muscles do I have?
I have about 650 muscles in my body.
My muscles make up half of my body weight.
Muscles always pull, they never push to cause movement.

5. My muscles are important because they…
Hold my organs in place
Hold my bones together so that I can move
Pump my blood
Allow me to run and play
Help me to smile!

6. What are muscles made of?
Stretchy, elastic cells and fibers
What else is stretchy like a muscle?

7. How many different types of muscles do I have???
2 main types
Voluntary muscles- muscles that you are able to control
Examples are leg and arm muscles
Involuntary Muscles- you can not move them consciously. They just keep working
Examples- heart

8. What are Smooth muscles???
non-striated
Involuntary
Move the internal organs
Contract and relax slowly
Example- small intestine

9. What are cardiac muscles???
Cardiac muscle-found only in the heart
Involuntary
Striations
Contracts about 70 times a minute every day of your life.

10. What are skeletal muscles???
Skeletal Muscles-muscles that move bones
Attached to bones by tendons
Most numerous in the body
Look striped or striated
Voluntary muscles

11. Why do I need tendons?
Tendons attach my muscles to my bone helping my body move.
Feel your tendon right above your heel in the back of your leg.
This is the thickest tendon in your body.
Try This...

12. One way to keep my muscles strong…
Eat foods from the meat group every day. They are high in protein which helps to build strong muscles.
Name some foods that are high in protein.

13. Another way to keep strong muscles…
Exercise every day.
What are some things you can do every day to help keep your muscular system healthy?

14. Lets Review

15. Works Cited My Body: Teacher Created Materials Encarta Encyclopedia
Microsoft Clipart

16. Virtual Chicken Wing Lab