Which term corresponds to bending backward of the spine?

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Multiple Choice

Which term corresponds to bending backward of the spine?

Explanation:
Bending backward of the spine is extension. In the sagittal plane, flexion describes forward bending, which decreases the angle between adjacent vertebrae, while extension increases that angle and moves the trunk or neck backward. So moving from a neutral upright position into a backward bend demonstrates extension (and going further back beyond neutral is hyperextension). Elevation and pronation describe different movements—elevation is lifting a structure upward, and pronation is rotating the forearm so the palm faces downward—so they don’t describe spinal backward bending.

Bending backward of the spine is extension. In the sagittal plane, flexion describes forward bending, which decreases the angle between adjacent vertebrae, while extension increases that angle and moves the trunk or neck backward. So moving from a neutral upright position into a backward bend demonstrates extension (and going further back beyond neutral is hyperextension). Elevation and pronation describe different movements—elevation is lifting a structure upward, and pronation is rotating the forearm so the palm faces downward—so they don’t describe spinal backward bending.

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