Final answer:
The Pacinian corpuscle detects deep transient pressure and high-frequency vibration by being compressed, which stimulates its internal dendrites.
Step-by-step explanation:
The Pacinian corpuscle is a type of mechanoreceptor found deep in the dermis of both glabrous (hairless) and hairy skin. It is responsible for sensing deep transient pressures as well as high-frequency vibrations. When the Pacinian corpuscle is compressed, its internal dendrites are stimulated, allowing it to detect these sensations. It is particularly adept at sensing vibrations that occur when we encounter a textured surface or when deep pressure is applied to the skin.
Despite their important role in the sensory system, Pacinian corpuscles, along with Ruffini endings, are less numerous in the skin compared to Merkel's disks and Meissner's corpuscles, which detect fine touch. Pacinian corpuscles, located deep in the dermis of the skin, detect pressure and high-frequency vibration.
They are rapidly adapting mechanoreceptors that sense deep transient pressure and vibration by being compressed, stimulating their internal dendrites. Pacinian corpuscles are fewer in number compared to Merkel's disks and Meissner's corpuscles in the skin.