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← Human Body & HealthIf a neurotoxin selectively blocks Piezo2 channels in human Pacinian corpuscles, which sensory effect follows?
A)Inability to detect high temperatures
B)Impaired ability to sense vibration✓
C)Loss of sharp pain sensation
D)Reduced ability to detect light touch
💡 Explanation
Pacinian corpuscles are responsible for sensing vibration via the activation of Piezo2 channels. Therefore, if these channels are blocked by a neurotoxin, the mechanotransduction mechanism is disrupted, and the individual loses the ability to detect vibrations, rather than pressure or temperature, because those are sensed by different receptors.
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