Which term describes the cumulative sensory input to the CNS from mechanoreceptors that sense body position and limb movement?

• A. Kinesthesia
• B. Tactile sensation
• C. Nociception
• D. Proprioception

Answer: (D)

Proprioception is the body's internal sense of limb position and movement, generated by cumulative input from mechanoreceptors in muscles, tendons, joints, and surrounding tissues. This sensory information travels to the CNS to inform you where your limbs are in space and how they’re moving, even without vision. While kinesthesia refers specifically to sensing movement, proprioception encompasses both static position and movement, making it the best descriptor of the overall input the CNS uses to know body position and limb movement. Tactile sensation covers touch, and nociception covers pain signaling, so they don’t describe the full proprioceptive input.