What describes extension?

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Study for the Anatomy and Physiology Muscular System Test. Prepare with flashcards and multiple choice questions; each question provides hints and explanations. Get ready to excel in your exam!

Multiple Choice

What describes extension?

Explanation:
Extension is the movement that increases the angle between the two bones at a joint, straightening the limb. It moves from a bent (flexed) position toward a more extended one, often toward straight alignment. This is the opposite of flexion, which decreases the angle. For example, straightening the elbow or knee increases the joint angle. Circumduction involves a circular path made by combining several movements, not just extending, and rotation is turning a bone around its long axis, which changes orientation rather than simply increasing joint angle.

Extension is the movement that increases the angle between the two bones at a joint, straightening the limb. It moves from a bent (flexed) position toward a more extended one, often toward straight alignment. This is the opposite of flexion, which decreases the angle. For example, straightening the elbow or knee increases the joint angle. Circumduction involves a circular path made by combining several movements, not just extending, and rotation is turning a bone around its long axis, which changes orientation rather than simply increasing joint angle.

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