1. Mrs. Anna Ward Ridge Road MS
The Skeletal System
Mrs. Anna Ward
Ridge Road MS

2. Warm Up (Page 20) Complete “L” of Nervous system KWL

3. Announcements

4. Demonstration and Questions for Discussion
Does the water in the bag have the same shape when placed on the table?
Our bodies are made mostly of water. Why don’t you and I flatten out on the floor like the water in the bag?
Are all skeletons the same for animals? What differences can we find?

5. Wrap-Up
What allows for us to move? What would we need to add to our animals to allow them to be able to move?

6. Let’s make a prediction….
How many bones are in the human body?

7. How many bones are in the human body?

8. Creating our imaginary animals….
You will have 10 minutes to complete your preliminary design.
Once you are cleared, you may begin creating your animal.
Do not forget to answer questions This is 40% of your grade.

9. Internal or External Skeleton?
Endoskeleton
Grows with organism
Can be stronger
Can store stuff inside hollow bone
Can store minerals
Supports large animals
BUT…
Limited protection
Doesn’t prevent water loss
Exoskeleton
Protects a soft body
Prevents water loss
BUT….
Skeleton must be shed for new growth
Limits the size of the animal

10. Brain Pop!!!
ms/skeleton/preview.weml

11. Skeletal System (Pg. 23)
The Skeletal System is the body system responsible for support and protection.
The purpose of the skeletal system is to:
Support
Protect
Provide Movement (along with the Muscular system)

12. The Skeletal System includes:
206 bones
Some important ones:
Skull—Protects brain
Spine—Protects the spinal cord

13. Joints Joint types: Ball and Socket—Shoulder Hinge—Elbow Pivot—Neck
Elipsoidal—Wrist
Your hip and knee are complex joints that are made up of more than one joint type.

14. Joints

15. What would happen if we didn’t have joints in our body???