Adduction is defined as movement?

• A. Movement toward the midline of the body
• B. Movement away from the midline of the body
• C. Rotation of the limb toward the midline
• D. Flexion of a joint

Answer: (A)

Adduction is movement toward the midline of the body, which is the imaginary line that divides us into left and right halves. An easy way to think about it is bringing a limb back toward the center of the body—for example, lowering the arms from a spread-out position back to the sides, or squeezing the legs together toward each other.

This is opposite to abduction, which is moving away from the midline. Rotation toward the midline is a related but separate action (medial rotation), and flexion is about bending a joint to reduce its angle, not specifically about moving toward the midline. So the description that matches adduction is movement toward the midline.