The contact of a water drop on the hand can be sensed about half a second before its temperature because ___.
A. temperature signals are delayed by a relay in the spinal cord
B. signals in the spinothalamic pathway travel more slowly than those in the lemniscal pathway
C. temperature signals are delayed by a relay to the thalamus
D. signals in the lemniscal pathway travel more slowly than those in the spinothalamic pathway
Answer: B. signals in the spinothalamic pathway travel more slowly than those in the lemniscal pathway
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