Which term describes bending or angulation of a joint?

• A. Flexion
• B. Extension
• C. Elevation
• D. Lateral

Answer: (A)

Bending a joint, or angulating it, is called flexion. It reduces the angle between the bones, as when you bend the elbow or knee. Extension is the opposite, straightening the joint and increasing that angle. Elevation involves lifting a part upward, not changing joint angle. Lateral movement refers to side-to-side motion, not bending.