Which movement increases the angle of a joint?

Which movement increases the angle of a joint?

• A. Abduction
• B. Adduction
• C. Extension
• D. Flexion

Answer: (C)

Extending a joint straightens it, increasing the angle between the two bones. When you straighten the elbow or knee from a bent position, the space between the bones becomes larger, moving toward a full extension. Flexion does the opposite by bending the joint and decreasing the angle. Abduction and adduction relate to moving limbs away from or toward the body's midline and don’t inherently describe changing the joint angle in the same way.

Extending a joint straightens it, increasing the angle between the two bones. When you straighten the elbow or knee from a bent position, the space between the bones becomes larger, moving toward a full extension. Flexion does the opposite by bending the joint and decreasing the angle. Abduction and adduction relate to moving limbs away from or toward the body's midline and don’t inherently describe changing the joint angle in the same way.