When you tap the top of your head do you feel something hard? When you tap the front of your leg, is it also hard? What you are feeling are bones.
Your body has bones of many shapes and sizes. Your leg bones are big and long. The bones of your fingers and toes are small and short. The bones of your skull, kneecaps, and shoulder blades are flat. Your rib bones are rounded. Some of your bones, such as those in your face, have very odd shapes.
Together, your bones make up the skeleton inside you. You have probably seen a skeleton before made of plastic. A human skeleton has about 206 separate bones. Your skeleton grows with you and gives shape to your body. If you did not have a skeleton, you would flop around like a rag doll.
Are you bending your arms or legs? Where your arm or leg is bending is where two or more bones meet. Bones come together at places called points. Some joints, like those in the skull, do not move. Other joints, like those in the legs, do move. You have joints in your arms, jaws, shoulders, hips, wrists, ankles, fingers, and toes. Your bones and joints work together to help you move around. They help you to kick a football, run, walk, and jump.
Bones are important for many reasons. First of all, they protect your organs. Organs are parts of you that work hard for your body. Your brain, eyes, heart, and lungs are organs. Your ribs make a cage around your heart, lungs, and other organs. They keep these important organs safe. Your skull is made up of many bones. They protect your brain.
Bones also helps make blood for your body. In the centre of some of your bones is a liquid called red bone marrow. Red bone marrow helps your body make blood.
Picture Credit : Google
