The Spine

Your spine is the long row of bones running down the middle of your back. It holds your body upright and lets you bend and twist. It also protects the important spinal cord inside it.

Parts of the Spine

Your spine is made up of 33 small bones called vertebrae. Between each bone is a soft cushion called a disc. These discs keep the bones from rubbing together.

The spine has natural curves that help it absorb shock when you jump or run. These curves also help you balance.

Taking Care of Your Spine

Good posture keeps your spine healthy. Sit up straight and do not slouch. When you carry a backpack, wear both straps so the weight is even.

Exercise and stretching help keep your spine strong and flexible. If your back hurts, tell an adult so they can help.

Fun Facts

• You are taller in the morning because the discs in your spine expand while you sleep.
• Giraffes have only seven neck vertebrae, the same number as humans.
• Your spinal cord sends messages between your brain and body at up to 270 miles per hour.

Did You Know?

Astronauts can grow up to two inches taller in space because there is no gravity pushing down on their spines!