All About Bones
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This is a human skeleton. It is made of bones. Bones shape and support your body. They also protect your organs
organ
MARIANNE KEMNITZ/EYEEM—GETTY IMAGES
a part of the body that has a specific job
(noun)
The skin is one of the human body's most important organs.
.
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This is an X-ray of a human skull. The skull protects the brain. It gives shape to the face. It has 22 bones.
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It is important to keep your bones healthy. Drinking milk or eating oranges helps. They have calcium
calcium
DEEPAK SETHI/GETTY IMAGES
a substance found in most plants and animals that helps people grow strong, healthy bones
(noun)
I drink a lot of milk so I get enough calcium in my diet.
. Calcium helps bones grow strong.
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Have you ever broken a bone? Ouch! A doctor sets the bone in place. A cast
cast
STEVEN PUETZER/GETTY IMAGES
a hard covering that is used to protect a broken bone as it heals
(noun)
After I broke my arm, I let all my friends sign my cast.
protects it while it heals.
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Your bones are under your skin. You need an X-ray machine to see them. An X-ray is a special type of picture. It shows doctors if a bone is broken.
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Did You Know?
Adults have 206 bones. Babies are born with about 300 bones. Bones are living things. As you get older, some bones fuse, or grow together.
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