Hair receptors respond most to what kind of stimulus?

• A. Temperature changes
• B. Hair movement with light touch
• C. Vibration
• D. Proprioception

Answer: (B)

Hair receptors are free nerve endings that wrap around hair follicles and sense deflection of the hair shaft. They respond most strongly to movement of the hair caused by light touch or a gentle breeze, transducing that mechanical deflection into a neural signal. This makes them especially attuned to subtle, light tactile stimuli rather than to changes in temperature, vibrations detected by deeper mechanoreceptors, or proprioceptive information from muscles and joints. So, hair movement with light touch is the stimulus that activates these receptors best.