A baby is born with around 300 bones and as the baby grows into an adult the bones fuse together and the number of bones an adult then has is 206.​

​baby

​Adult

​300 bones

206 bones

​​Our bones help us to do many things: 

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•They help us move.

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•They give the body structure and shape.

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•They protect our organs.

A joint (khớp) is where two bones meet.​

​Muscles (cơ bắp):

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• ​Muscles are connected to the skeleton.

• ​They help our skeleton move so that we can move.

• ​They can be big and small.

​Muscles (cơ bắp):

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• ​Muscles are connected to the skeleton.

• ​They help our skeleton move so that we can move.

• ​They can be big and small.

• ​There are more than 650 muscles in our body.