Mrs. Anna Ward Ridge Road MS

 Continue to sell for the fundraiser  Blood drive is Friday after school ◦ 1 donation saves 3 lives ◦ Mr. and Mrs. Ward will be participating ◦ + 10 Extra Credit on Human Body Test if you find an adult to participate ◦ Sign up is with Ms. Wong

 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?

 What allows for us to move? What would we need to add to our animals to allow them to be able to move?

 How many bones are in the human body?

 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 4-7. This is 40% of your grade.

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

 ms/skeleton/preview.weml ms/skeleton/preview.weml

 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)

 206 bones  Some important ones: ◦ Skull—Protects brain ◦ Spine—Protects the spinal cord

 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.