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Study
Skeletons and movement
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muscles work by getting?
shorter and longer
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__________ gives your body shape and makes it firm, it also protect our organs.
skeletons
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How can we make our muscles bigger?
workout
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How many bones do you have as an adult?
206
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______ always work in pairs
muscles
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_______ are the bones of the head
skull
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Muscles get shorter, pulling on the bones. we say it muscles ______
contract
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we can move because there are ______ joined to bones of the skeleton
muscles
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Muscles get longer, allow us to rest. We say it muscles ______
relax
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