Which statement most accurately describes the mechanism that allows us to sense warmth and coolness?
a. There are only receptors for warmth and they work like a thermometer.
b. There are only receptors for coolness and they work like a thermometer.
c. The brain integrates separate warm and cool signals.
d. Meissner corpuscles sense warmth and Merkel disks sense coolness; inputs from these receivers are directly "felt" by the brain.
Answer: c. The brain integrates separate warm and cool signals.
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