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Human Body & Health

If a construction worker continuously uses a jackhammer without padded gloves, which consequence affecting touch sensation is most likely?

A)Increased two-point discrimination threshold
B)Reduced Pacinian corpuscle firing rate
C)Heightened Merkel cell sensitivity
D)Enhanced Ruffini ending adaptation speed

💡 Explanation

Repeated vibration exposure damages Pacinian corpuscles, leading to a decrease in their sensitivity and firing rate; because these receptors are responsible for sensing deep pressure and high-frequency vibration, their reduced activity diminishes touch sensitivity. Therefore, reduced Pacinian corpuscle firing rate is most likely, rather than heightened sensitivity or altered adaptation in other receptor types.

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