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What do Krause end bulbs sense?

  1. Pressure and pain

  2. Humidity

  3. Temperature changes

  4. Vibrations

The correct answer is: Pressure and pain

Krause end bulbs are sensory receptors located in the dermal papillae of the skin that are responsible for detecting pressure and pain. These specialized nerve endings have a flattened shape and respond to mechanical stimuli, such as pressure and touch. They do not sense humidity, temperature changes, or vibrations, which are typically detected by other types of sensory receptors in the skin. Therefore, A is the most accurate and logical answer.