Your body is supported by a firm framework of 206 bones. Your bones can be divided into two skeletal systems. The axial skeleton contains all the bones in the trunk of your body (that’s the middle part of your body that includes your spine).
The appendicular skeletoncontains all the bones in your limbs (that includes your arms, hands, legs and feet). Without your bones keeping you in shape, you’d look like a floppy rag doll. But your bones have other jobs, too. They protect organs inside you, like your heart and brain.
The red and white blood cells your body needs are produced in the soft center of your bones. And in each of your ears are three tiny bones that help you hear.
You can’t feel all your bones. Many are too small or hidden under muscles. Some are easy to find. Can you find your ribs and count them? There are 24 of them.
It’s important to take care of your bones and keep them healthy. Your bones are alive and, like all other living things, they need proper nourishment. You can help keep your bones healthy by making sure you get enough calcium.
Calcium is a mineral that helps bones harden and become strong. Foods with calcium include dairy products, such as milk, cheese, and yogurt. You can also keep your bones healthy by exercising.
What is the longest bone in the body? Your femur, or thighbone, is the largest bone in your body. The head of your femur fits into your hip socket and the bottom end connects to your knee.
Content for this question contributed by Aaron Gillmore, resident of Aptos, Santa Cruz County, California, USA
