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3710 Physiology

Which statement concerning sensory neurons or their functional propeies is true?

AAll sensory fibers are unmyelinated
BIn spatial summation, increasing signal strength is transmitted by using progressively greater numbers of sensory fibers (Correct Answer)
CIncreased stimulus intensity is signaled by a progressive decrease in the receptor potential
DContinuous subthreshold stimulation of a pool of sensory neurons results in disfacilitation of those neurons