Question

Why are two muscles needed to bring out movement of the hinge joint?

Answer 1

Answer:

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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Answer 2

we need two muscles to bring out the movement of hinge joint.

Explanation:

• A muscle can only pull it cannot push thus two muscle are required to work together to move a bone.
• Hinge joint function by allowing flexion and extension in one plane with small degrees of motion in other plane.
• When one muscle contracts the bone is pulled when another muscle of the pair pulls it brings the bone in its original position.