Bones are super important for giving our bodies shape and helping us move. Here are some main points to know about bones:

1. Structure:

   • An adult human has about 206 bones in their skeleton.
   • Bones make up around 15% of our total body weight.

2. Support:

   • Bones give a strong framework that holds up our soft tissues and organs.
   • For example, the backbone supports our head and upper body.

3. Movement:

   • Bones work like levers. When our muscles pull, they move the bones.
   • The knee joint lets us bend and straighten our legs, with the femur (thigh bone) and tibia (shin bone) helping with that.

4. Statistics:

   • Each arm and leg has about 30 bones that help us move and stay agile.
   • Our body has over 600 muscles connected to the skeleton that help us move around.

The way bones and muscles work together is really important for moving and staying healthy.