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The tactile corpuscule, also known as the Meissner's corpuscle, is a type of encapsulated nerve ending located in the skin. More specifically, it is located in the superficial portions of the dermis. The corpuscle is surrounded by a myelinated sheath composed of Schwann cells.
Function. Tactile corpuscles are rapidly adapting mechanoreceptors. They are sensitive to shape and textural changes in exploratory and discriminatory touch. Their acute sensitivity provides the neural basis for reading Braille text.
Meissner corpuscles play an essential role in somatosensory acuity, especially in the digital extremities and palmar skin, meriting clinical significance for peripheral and diabetic neuropathy as well as age-related degeneration of dermatological tactile sensation.
Meissner’s corpuscles, also known as tactile corpuscles, are found in the upper dermis, but they project into the epidermis. They are found primarily in the glabrous skin on the fingertips and eyelids. They respond to fine touch and pressure, but they also respond to low-frequency vibration or flutter.
Sensory corpuscles of human skin are terminals of primary mechanoreceptive neurons associated with non-neuronal cells that function as low-threshold mechanoreceptors. Structurally, they consist of an extreme tip of a mechanosensory axon and ...
Tactile (Meissner) corpuscles. Tactile corpuscles, otherwise known as Meissner corpuscles, are rapidly adapting mechanoreceptors located in the dermal papillae of glabrous skin. They are encapsulated nerve endings consisting of elongated Schwann cells, a connective tissue capsule and a central axon.
Deep pressure and vibration is transduced by lamellated (Pacinian) corpuscles, which are receptors with encapsulated endings found deep in the dermis, or subcutaneous tissue. Light touch is transduced by the encapsulated endings known as tactile (Meissner’s) corpuscles.
Meissner’s corpuscles (or tactile corpuscles) are responsible for sensitivity to light touch. In particular, they have the highest sensitivity (lowest threshold) when sensing vibrations lower than 50 hertz. They are rapidly adaptive receptors.
A tactile corpuscle is a rapidly adapting encapsulated nerve ending found in the dermal ridges of glabrous skin, particularly of the digits, lips, nipples, and genitalia. It is specialized for tactile discrimination (Dorland, 2011).
There are four major categories of tactile mechanoreceptors: Merkel’s disks, Meissner’s corpuscles, Ruffini endings, and Pacinian corpuscles. [1] Go to: Issues of Concern. Not much is known about the molecular actions that lead to tactile mechanoreceptor activation, which leads to subsequent signal transduction.