What do bones do?
Hinge joints
| What are Joints?
A ball and socket joint
|
Gliding Joints
| Pivot Joints
Fixed joints
|
- All bones are halo but it has Bone marrow inside of it. Then there is a layer of spongy bone then the outer layer of compact bone. Then there are a tiny layer of Periosteum which is a layer of cells.
- We have red and white blood cells.
- If we had solid bones we would weigh way more.
- When you sprain a ankle or something it is a muscle not a bone.
- Your skull is like a helmet.
- Our eyes,heart,lungs,trachea,and esophagus are protected by our bones.
- An adult have 206 bones and baby's have 270 bones.
- Muscles pull on bones to move each bone.
- Our back is not perfectly straight it goes in and out.
- We make new cells when we grow.