What distinguishes functional prosthetics from passive prosthetics?

Functional prosthetics are specifically designed to provide movement and perform various tasks, often incorporating mechanical or electronic components that allow the user to engage in activities such as grasping or walking. This functionality is particularly beneficial for users who require assistance with mobility and daily tasks, thereby enhancing their quality of life.

In contrast, passive prosthetics do not offer movement; they are typically designed to be lightweight and may provide cosmetic appearances or basic support but lack the ability to actively engage in movements. This distinction is critical, as it informs the selection of the appropriate type of prosthetic based on the user's needs, lifestyle, and level of activity.

The other answer choices do not accurately represent the primary differences between functional and passive prosthetics. For instance, the cost of passive prosthetics varies based on design and materials used, which means they are not necessarily always more expensive. Additionally, functional prosthetics can be designed for both upper and lower limbs, and both types of prosthetics serve the ultimate purpose of assisting users, albeit in different ways.