what do bones do
- bones help you stand
- they help keep your organs and brain safe
- they let us move our muscles
what is a joint
joints help you move because only joints move your bones. Fixed joints don't allow movement, hinge joints only move one way.top two knuckles are hinge joints same with elbows and knees.ball and socket joint is hips and shoulders. joints necks ankles and feet. in between is cartilage so it doesn't hurt.
joints help you move because only joints move your bones. Fixed joints don't allow movement, hinge joints only move one way.top two knuckles are hinge joints same with elbows and knees.ball and socket joint is hips and shoulders. joints necks ankles and feet. in between is cartilage so it doesn't hurt.