Adduction means movement toward the midline. Which option correctly defines adduction?

• A. Movement away from the midline
• B. Movement toward the midline
• C. Rotation
• D. Flexion

Answer: (B)

Adduction is movement toward the midline. When you adduct a body part, you bring it closer to the center of the body—for example, bringing the arms down to the sides or bringing the fingers together toward the midline of the hand. The other terms describe different actions: rotation is turning around an axis, and flexion is bending a joint to decrease the angle between bones. Moving away from the midline would be abduction, so the description that matches toward the midline is the correct definition.