Which corpuscle in the skin is responsible for detecting deep pressure?

Pacinian corpuscles, also known as lamellar corpuscles, play a key role in detecting deep pressure and vibration within the skin. These sensory receptors are located deeper in the dermis and in some subcutaneous tissues. They are structured to respond to larger, rapid changes in pressure, indicating the presence of deep pressure stimuli.

The unique structure of Pacinian corpuscles allows them to adapt quickly to stimuli, meaning they are particularly effective at detecting changes rather than constant pressure. When deep pressure is applied, the fluid within the layered structure of the corpuscle causes it to generate a response that is transmitted via sensory nerve fibers to the brain, enabling the perception of the pressure change.

In contrast, other corpuscles such as Meissner corpuscles are sensitive to light touch and vibrations at lower frequencies, Merkel cells are linked to fine touch and pressure, and Krause end bulbs are involved in detecting cold and pressure but are not specifically tailored for deep pressure. Each of these receptors has its own function, but it is the Pacinian corpuscles that are specifically designed to detect and signal deep pressure sensations.