**Core Concept**
Pacinian corpuscles are a type of mechanoreceptor found in the skin that play a crucial role in detecting changes in pressure and vibration. These sensory receptors are responsible for transmitting signals to the central nervous system, enabling us to perceive tactile sensations.

**Why the Correct Answer is Right**
Pacinian corpuscles are rapidly adapting mechanoreceptors, meaning they respond quickly to changes in pressure or vibration but return to their baseline state soon after the stimulus is removed. This is due to the unique structure of these receptors, which consists of concentric layers of lamellated cells. When pressure is applied, the lamellae collapse, causing a rapid depolarization of the receptor. As the pressure is released, the lamellae return to their original shape, and the receptor rapidly repolarizes. This rapid adaptation allows Pacinian corpuscles to detect changes in pressure and vibration but not sustained pressure.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as it does not accurately describe the function of Pacinian corpuscles. While they do respond to pressure, they are specifically adapted to detect changes in pressure and vibration, not sustained pressure.
**Option B:** This option is incorrect as it does not accurately describe the structure of Pacinian corpuscles. While they do have a lamellated structure, it is the rapid adaptation of these receptors that is key to their function.
**Option C:** This option is incorrect as it does not accurately describe the role of Pacinian corpuscles in sensation. While they do contribute to our sense of touch, they are specifically responsible for detecting changes in pressure and vibration.

**Clinical Pearl / High-Yield Fact**
Pacinian corpuscles are an example of rapidly adapting mechanoreceptors, which are responsible for detecting changes in pressure and vibration. This is in contrast to slowly adapting mechanoreceptors, such as Meissner's corpuscles, which respond to sustained pressure.

**Correct Answer: C. Rapidly adapting mechanoreceptors that respond to changes in pressure and vibration.**