Which of the following best describes a passive prosthesis?

• A. Provides active motion
• B. Provides opposition, normalizes anatomic length, NO ACTIVE motion, lightweight
• C. Requires frequent maintenance and is heavy
• D. Is cosmetic only

Answer: (B)

Passive prostheses do not generate movement. Their primary role is to provide a stable, lightweight option that preserves proper limb length, supports alignment, and offers an appearance that matches the intact limb. They can provide a static surface or opposition to help with handling tasks, but there is no active motion or grasping function. Because there are no motors or actuators, these devices are easier to wear and require less maintenance than powered or highly functional devices.