![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/2/27/Skin.png/640px-Skin.png&w=640&q=50)
Pacinian corpuscle
Type of mechanoreceptor cell in hairless mammals / From Wikipedia, the free encyclopedia
The Pacinian corpuscle, lamellar corpuscle or Vater-Pacini corpuscle[1] is one of the four major types of mechanoreceptors (specialized nerve ending) for mechanical sensation) found in mammalian skin. This type of mechanoreceptor is found in both hairy, and hairless skin, viscera, joints, and attached to the periosteum of bone, primarily responsible for sensitivity to vibration.[2] A few are also sensitive to quasi-static or low frequency pressure stimuli.[citation needed] Most of them respond only to sudden disturbances and are especially sensitive to vibration of a few hundreds hertz.[3] The vibrational role may be used for detecting surface texture, such as rough and smooth. Most of the Pacinian corpuscles act as rapidly adapting mechanoreceptors. Groups of corpuscles respond to pressure changes, such as on grasping or releasing an object.
Pacinian corpuscle | |
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![]() Pacinian corpuscle, with its system of capsules and central cavity. a. Arterial twig, ending in capillaries, which form loops in some of the intercapsular spaces, and one penetrates to the central capsule. b. The fibrous tissue of the stalk. n. Nerve tube advancing to the central capsule, there losing its white matter and stretching along the axis to the opposite end, where it ends by a tuberculated enlargement. | |
![]() Pacinian corpuscle labeled at bottom | |
Details | |
Location | Skin |
Identifiers | |
Latin | corpusculum Pacinian |
MeSH | D010141 |
TH | H3.11.06.0.00009 |
FMA | 83604 |
Anatomical terms of microanatomy |