Why are at least two muscles needed to move a bone at a joint in one d

1.	Why are at least two muscles needed to move a bone at a joint in one direction
Answer» Explanation: A single MUSCLE can only pull, it cannot push. Thus, muscles WORK in pairs to move a bone. When one muscle contracts, it PULLS the movable bone. When another muscle of the pair pulls, it brings the bone BACK to its original position.

Why are at least two muscles needed to move a bone at a joint in one direction

Answer»

Explanation:

A single MUSCLE can only pull, it cannot push. Thus, muscles WORK in pairs to move a bone. When one muscle contracts, it PULLS the movable bone. When another muscle of the pair pulls, it brings the bone BACK to its original position.

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Why are at least two muscles needed to move a bone at a joint in one direction​

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Why are at least two muscles needed to move a bone at a joint in one direction