Question

how do muscles help in movement ​

Answer 1

Answer:

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Muscles are attached to bones by tendons and help them to move. When a muscle contracts (bunches up), it gets shorter and so pulls on the bone it is attached to. Muscles can only pull and cannot push. Therefore muscles have to work in pairs to move a joint.

Answer 2

Answer:

Muscles move body parts by contracting and then relaxing. Muscles can pull bones, but they can't push them back to the original position. So they work in pairs of flexors and extensors. The flexor contracts to bend a limb at a joint

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