Which statement about sip-and-puff control is true?

• A. Relies on voice commands.
• B. It uses manual joystick input.
• C. It is a switch-based system used for high-level spinal injuries.
• D. It is primarily used for low-level injuries.

Answer: (C)

Sip-and-puff control uses breath to operate switches: you sip (inhale) or puff (exhale) into a straw-like tube, and those breath actions trigger electronic switches that control the wheelchair or other devices. Because it relies on respiration rather than hands, it’s especially suited for high-level spinal injuries where there is little or no usable hand function. It is not based on voice commands, nor on a manual joystick, and it’s not primarily used for low-level injuries. This combination—breath-activated, switch-based control for individuals with significant impairment in hand and arm function—best describes sip-and-puff control.