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Question

Just like a locomotive engine, muscles can only _____.


A

pull

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B

push

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C

flex

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D

relax

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Solution

The correct option is A

pull


Muscles can only pull; they cannot push. All the movements of the limbs and some other parts of the body are done by the pulling action of muscles. Muscles work in pairs and their action in opposite direction causes a back and forth motion of the limbs. For example - biceps and triceps work in a pair to pull the arm towards and away from the body.


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