Answer :
Final answer:
Flexion decreases the angle between bones, extension increases it, and hyperextension goes beyond the normal position.
Explanation:
Flexion is the medical term for decreasing the angle between two bones by bending a limb at a joint. An example of flexion is moving the forearm upward at the elbow. Extension is the opposite movement where the angle between the bones increases, like straightening a limb after flexion. Hyperextension refers to extension past the regular anatomical position.
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