pacinian corpuscles


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Related to pacinian corpuscles: Meissner's Corpuscles, Ruffini corpuscles, Nociceptors

lam·el·lat·ed cor·pus·cles

small oval bodies in the skin of the fingers, in the mesentery, tendons, and elsewhere, formed of concentric layers of connective tissue with a soft core in which the axon of a nerve fiber runs, splitting up into a number of fibrils that terminate in bulbous enlargements; they are sensitive to pressure.

lam·el·lat·ed cor·pus·cles

(lam'ĕ-lāt'ĕd kōr'pŭs-ĕlz)
Small oval bodies in the skin of the fingers, in the mesentery, tendons, and elsewhere, formed of concentric layers of connective tissue with a soft core in which the axon of a nerve fiber runs, splitting up into a number of fibrils that terminate in bulbous enlargements; they are sensitive to pressure.
Synonym(s): corpuscula lamellosa [TA] , pacinian corpuscles.

Pacini,

Filippo, Italian anatomist, 1812-1883.
Pacini bodies
pacinian corpuscles - Synonym(s): Vater corpuscles
Vater-Pacini corpuscles - Synonym(s): Vater corpuscles

pacinian corpuscles

specialized nerve endings subserving vibrational awareness, located deep within dermis; formed as lamellated bulbs at termini of A-beta sensory nerve fibres (see Table 1)
Table 1: Afferent sensory impulses from the skin and superficial tissues
SensationSpecialized nerve endingSubserving nerve fibre
Light touchMeissner's corpusclesA-beta
VibrationPacinian corpusclesA-beta
Positional awarenessJoint proprioceptors
Golgi tendon organs
Muscle stretch receptors
A-beta
Sharp painFree nerve endings (high-threshold polymodal and thermo/mechanical nociceptors)A-delta
Dull pain/acheFree nerve endings (high-threshold polymodal nociceptors)C
TemperatureFree nerve endings (high-threshold thermal nociceptors)C
References in periodicals archive ?
Fingerprints might actually improve the sensitivity of perception by enhancing the skin vibrations at a frequency that matches the best frequency of these Pacinian corpuscles," Nature magazine quoted Debregeas as saying.