**Core Concept**
Pacinian corpuscles are a type of mechanoreceptor found in the skin that play a crucial role in detecting mechanical stimuli, specifically vibrations and pressure. They are rapidly adapting receptors, meaning they respond to changes in pressure and then return to their baseline state, allowing for the detection of dynamic stimuli.
**Why the Correct Answer is Right**
Pacinian corpuscles transmit pressure and vibration sensations to the central nervous system through the activation of AΞ² fibers. When a stimulus is applied to the skin, the Pacinian corpuscle is activated, and the depolarization of the nerve terminal leads to the release of neurotransmitters, which then stimulate the AΞ² fibers to transmit the sensation of pressure and vibration to the brain.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because Pacinian corpuscles are not responsible for detecting temperature sensations, which are transmitted by different types of receptors, such as thermoreceptors.
**Option B:** This option is incorrect because Pacinian corpuscles are not responsible for detecting pain sensations, which are transmitted by nociceptors.
**Option C:** This option is incorrect because Pacinian corpuscles are not responsible for detecting proprioceptive sensations, which are transmitted by proprioceptors in muscles, tendons, and joints.
**Clinical Pearl / High-Yield Fact**
Pacinian corpuscles are rapidly adapting receptors, which means they are most responsive to dynamic stimuli, such as vibrations, and less responsive to sustained pressure.
**Correct Answer: C. Touch**
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