๐ซ My body and food ๐ช Bones and muscles
Bones
๐ In short
Bones are the hard parts inside your body, and together they make up the skeleton. Bones help you stand up straight, protect your important organs and help you move. An adult's body has 206 bones!
๐คฉ Did you know?
- A baby is born with about 300 bones, and some fuse together, leaving 206 in adults.
- About 3% of children's bones are renewed every year.
- More than half the bones in your body are in your hands and feet.
- Bones are very strong but light.
๐ Find out more
๐ Living bones
You might think bones are like dead stone, but they're alive! They have blood vessels and nerves, they grow with you, and if they break they heal by themselves with time and rest.
๐ The blood factory
Inside some bones is a soft material called bone marrow, a factory that makes red and white blood cells every day.
๐ก Big and small
The longest bone in your body is the thighbone, and the smallest is a tiny bone in your ear called the stirrup, smaller than a grain of rice.
๐ฏ How do you make your bones stronger?
Drink milk and eat cheese, yogurt and leafy greens, which are rich in calcium, play outside in the sun, and do sports like running and jumping.
๐ธ More pictures
๐งฉ Test yourself
1 How many bones does an adult's body have?
2 Which food makes bones stronger?
3 About ?? % of children's bones are renewed every year.
4 Which picture shows โBonesโ?
๐ซ Discover more
๐ท Picture sources: Wikimedia Commons
- Wikimedia Commons ยท CC BY 4.0
- Jakub Fryลก ยท CC BY-SA 4.0
