Question

pain, heat, and cold are detected by_________.
multiple choice
tactile discs
tactile corpuscles
lamellar corpuscles
free nerve endings
end bulbs

Explanation:

• Tactile discs detect light touch.
• Tactile corpuscles detect fine touch and low - frequency vibration.
• Lamellar corpuscles detect deep pressure and high - frequency vibration.
• Free nerve endings are responsible for detecting pain, heat, and cold.
• End bulbs are involved in detecting temperature changes (a more specific subset of what free nerve endings do in a broader sense, but free nerve endings are the more general and correct answer for pain, heat, cold).

Answer:

free nerve endings