Which skin corpuscle detects heat?

• A. Meissner
• B. Ruffini
• C. Krause
• D. Pacinian

Answer: (B)

The Ruffini corpuscles, which are specifically responsible for detecting heat, play a significant role in thermoreception. These sensory receptors are located in the skin and deeper tissues and are sensitive to sustained pressure and skin stretch, which includes the detection of warmth. They contribute to our ability to perceive changes in temperature, particularly when the skin is under distortion, such as during movement or stretching.

On the other hand, Meissner corpuscles are primarily sensitive to light touch and vibration, Krause end bulbs are more associated with cold detection, and Pacinian corpuscles are specialized for detecting deep pressure and vibration. Understanding the function of these different types of skin receptors helps in recognizing how our body perceives various environmental stimuli, including temperature changes.