Which statement most accurately describes the mechanism that allows us to sense warmth and coolness?
A)There are only receptors for warmth which work like a thermometer.
B)There are only receptors for coolness which 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.

Question

Quizplus · Accepted Answer

Warmth and coolness are sensed by separate receptors, but the brain integrates these signals to give us the perception of temperature. There is no single type of receptor that acts like a thermometer, and different types of receptors respond to different ranges of temperature. Therefore, options A and B are not accurate. Option D is also incorrect because Meissner corpuscles and Merkel disks are actually types of touch receptors, and they do not specifically sense warmth or coolness.

Which Statement Most Accurately Describes the Mechanism That Allows Us