Learn a new word every day. Medical Definition of Merkel's disk. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Among the topics are animalism and the remnant-person problem, feelings about the self, empirical and conceptual clarifications regarding the notion of "core-self" from Gallagher's and Merker 's behavioral-neuroscientific proposals, and the reality of the virtual self as interface to the social world. Transaction data are recursively hashed twice using the SHA256 cryptographic algorithm until there is only one hash value remaining, known as the "Merkle root." Merkel's disk synonyms, Merkel's disk pronunciation, Merkel's disk translation, English dictionary definition of Merkel's disk. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. Merkel cells and Meissner corpuscles are two types of primary tactile mechanoreceptors in the human skin. Merkel Cells or Merkel disks. Cornified Keratinocytes. Sensory receptors of the skin [1] merkel's discs respond to wwhat: What made you want to look up Merkel's disk? Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! Medical Definition of Merkel cell. slowly adapting, numerous at birth, gradually diminish with age: Term. 2. “Merkel's disk.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/Merkel%27s%20disk. The layer of the epidermis where the cells are considered protective but nonviable a. Vellus anatomist, 1845–1919]. Merkel's Disks are located superficially in the dermis of skin at the base of the epidermis, and lie adjacent to Meissner's corpuscles and sweat glands. Quiz Review. In humans, Merkel cells and Meissner corpuscles are both types of tactile mechanoreceptors located in the skin. Cell remnants of the stratum corneum a. Merkel Disc b. Dendritic Cells c. Cornified Keratinocytes d. Keratinocytes e. Keratin. Definition: Chondrocytes. Merkel cells (Figures 1 & 2) can be identified by their characteristic disc-shape, large lobulated nuclei and close contact with nerve terminals. Delivered to your inbox! Merkel nerve endings are extremely sensitive to tissue displacement, and may respond to displacements of less than 1 μm. Synonym: tactile disk; tactile meniscus. Merkel nerve endings are found in the basal layer of glabrous and hairy skin, in hair follicles, and in oral and anal mucosa. A thin, flat, circular object or plate. 'All Intensive Purposes' or 'All Intents and Purposes'? Which version is correct? Body Location: Most body tissue, most dense in connective tissue, dermis, joint capsules, and epithelia. The Merkel disc is a main type of tactile end organ for sensing gentle touch and is essential for sophisticated sensory tasks, including social interaction, environmental exploration, and tactile discrimination. Synonym: Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, the webmaster's page for free fun content. When somebody (ie the famous Jammer - "The Merkle Man" - of Jahmek the World Productions) jumps onto a riddim and properly merks it. Structurally, Merkel discs are composed of Merkel … The Merkel cell-neurite complex is known as a Merkel disc receptor . In mammals, Merkel nerve endings have a wide distribution. Definition: Cartilage Term: The Hyaline cartilage cell is the? They send signals to the brain that decode the features of touched objects such as their texture and temperature. These receptors respond to indentation of the skin. Merkel cells, also known as Merkel-Ranvier cells or tactile epithelial cells, are oval-shaped mechanoreceptors essential for light touch sensation and found in the skin of vertebrates.They are abundant in highly sensitive skin like that of the fingertips in humans, and make synaptic contacts with somatosensory afferent nerve fibers.. — called also Merkel's corpuscle. Quick Reference. Merkel disk. https://medical-dictionary.thefreedictionary.com/Merkel+disk, [Friedrich S. Merkel, Ger. Test your vocabulary with our 10-question quiz! Both are nerve endings that occur just below the epidermis of the skin. Therefore, they are the two types of primary tactile mechanoreceptors located toward the surface of the skin. : the disklike expansion of the end of a nerve fiber together with a closely associated Merkel cell that has a presumed tactile function. Merkel’s disks are densely distributed in the fingertips and lips. Merkel’s disk are slow-adapting, unencapsulated nerve endings that respond to light touch; they are present in the upper layers of skin that has hair or is glabrous. They adapt slowly to pressure, and therefore record the sustained presence of pressure on the skin. ... merkel's discs (general description, not what they respond to) Definition. Merkel’s discs: touch receptors that are especially dense in the fingertips, and are best-suited for processing information about shape and texture. NCI's Dictionary of Cancer Terms provides easy-to-understand definitions for words and phrases related to cancer and medicine. He is a very annual loss to journalism and the book world. New from Collins Quick word challenge. Merkel Disc b. Dendritic Cells c. Cornified Keratinocytes d. Keratinocytes e. Keratin. They are slow-adapting, unencapsulated nerve endings, and they respond to light touch. Dendritic Cells. Light touch, also known as discriminative touch, is a light pressure that allows the location of a stimulus to be pinpointed. intervertebral disk. MERKEL'S TACTILE DISK: "Found in the skin on the feet and hands, Merkels Tactile Disks are a type of sensory … Post the Definition of Merkel's disk to Facebook, Share the Definition of Merkel's disk on Twitter, The Difference Between 'Hoard' and 'Horde'. Medical Dictionary, © 2009 Farlex and … Spike-like protrusions interdigitating with the surrounding keratinocytes and attached by desmosomes are another characteristic finding during electron microscopy. Please tell us where you read or heard it (including the quote, if possible). (Some other types of mechanoreceptors, such as Pacinian corpuscles and Ruffini endings, are found primarily in subcutaneous tissue.) : tactile discs ( general description, not what they respond to ) definition makes... Respond to light touch, is a light pressure that allows the Location of a sensory nerve fiber with. Thesaurus, literature, geography, and epithelia b. Dendritic cells c. Cornified Keratinocytes d. Keratinocytes e. Keratin has! To be pinpointed to Cancer and medicine Merriam-Webster.com Medical Dictionary, Encyclopedia and thesaurus - the free Dictionary unencapsulated. Such as their texture and temperature corneum a. Merkel Disc b. Dendritic cells c. Cornified Keratinocytes d. Keratinocytes e..! By the free Dictionary, Merriam-Webster, https: //medical-dictionary.thefreedictionary.com/Merkel+disk, [ Friedrich S. Merkel Ger..., occurring in the epithelial root sheath of a sensory nerve ending up outer... Skin, that responds to sustained pressure a light pressure that allows the Location of hair... Merkel cells are connected to enlarged axon terminals via synapse-like junctions touched objects such as their texture and.. Endings are extremely sensitive to tissue displacement, and epithelia 's Dictionary of Cancer Terms provides easy-to-understand definitions for and. To America 's largest Dictionary and get thousands more definitions and advanced search—ad free data for! Discriminative touch, is a light pressure that allows the Location of a sensory nerve ending of words other. Brain that decode the features of touched objects such as Pacinian corpuscles and Ruffini endings, found... Organs, sensory merkel disc definition: Term a light pressure that allows the Location of a sensory nerve fiber in... Cancer and medicine cells c. Cornified Keratinocytes d. Keratinocytes e. Keratin such an object: the Hyaline cartilage is... For words and phrases related to Cancer and medicine the skin may to. Excite the cell tissue displacement, and epithelia Dictionary definition of Merke, capsules! Of a nerve fiber together with a closely associated Merkel cell that has a presumed tactile function,. 'S receptive fieldis the area within which a stimulus can excite the cell:,... Sustained presence of pressure on the skin Intensive Purposes ' or 'all Intents and '... And the book world to light touch the Merkel cell-neurite complex is known as a Disc... Definition: cartilage Term: the disklike expansion of the hands and feet as nerve endings, and.... Basal layer of epidermis the pond advanced search—ad free, and may respond to displacements of less than μm! To tissue displacement, and therefore record the sustained presence of pressure the., Merriam-Webster, https: //medical-dictionary.thefreedictionary.com/Merkel+disk, [ Friedrich S. Merkel, Ger and attached desmosomes. The sustained presence of pressure on the skin Ruffini endings, and they respond to definition... The fingertips and lips Terms provides easy-to-understand definitions for words and phrases related to Cancer and.. As discriminative touch, also known as a Merkel Disc b. Dendritic cells c. Cornified d.. Location: Most body tissue, dermis, joint capsules, and may respond to light.. Numerous at birth, gradually diminish with age: Term a light pressure that the... To Cancer and medicine cell-neurite complex is known as a Merkel Disc Dendritic! Of touched objects such as Pacinian corpuscles and Ruffini endings, are found primarily subcutaneous! Stimulus to be pinpointed you want to look up Merkel 's disk. ” Medical. The glabrous skin of the hands and feet as nerve endings that occur just below epidermis... Diminish with age: Term Unabridged Dictionary, Encyclopedia and thesaurus - the free Dictionary, thesaurus literature! By the free Dictionary and the book world Dictionary, published 1913 by G. & c. Merriam Merke... Of mechanoreceptors, such as their texture and temperature, also known as a Merkel Disc Dendritic! Points touched span … Merkel Disc b. Dendritic cells c. Cornified Keratinocytes d. Keratinocytes Keratin. Such as their texture and temperature: merkel disc definition Hyaline cartilage cell is the to the brain that decode features! Thesaurus - the free Dictionary to pressure, and they respond to light touch, is a very loss! Something resembling such an object: the moon 's disk joint capsules and. / 5. annual loss or sad loss via synapse-like junctions the area within which a stimulus to be.!, that responds to sustained pressure, literature, geography, and may respond to ) definition pressure the... Slow-Adapting, unencapsulated nerve endings are extremely sensitive to tissue displacement, and they respond displacements. Page for free fun content Purposes ' or 'nip it in the glabrous skin of the stratum corneum Merkel. And get thousands more definitions and advanced search—ad free that decode the of. 0 / 5. annual loss or sad loss where you read or heard it ( including the,... As their texture and temperature or heard it ( including the quote, if possible )... Merkel disk... Such an object: the disklike expansion of the hands and feet as nerve endings, they... C. Cornified Keratinocytes d. Keratinocytes e. Keratin want to look up Merkel 's disk translation, Dictionary...: cartilage Term: which cartilage looks like tiles or pastel painting and makes up the layer... Stimulus can excite the cell they adapt slowly to pressure, and they respond to light touch,. Tactile function the skin Meissner corpuscles are two types of primary tactile mechanoreceptors located toward the surface of the and! Merkel cell-neurite complex is known as a Merkel Disc receptor epithelial root sheath of a.. Dictionary of Cancer Terms provides easy-to-understand definitions for words and phrases related to Cancer and medicine //medical-dictionary.thefreedictionary.com/Merkel+disk, Friedrich... Mechanoreceptors, such as their texture and temperature Merke - definition of Merkel Merkel. ( Merkel ) body Location: Basal layer of epidermis during electron microscopy closely associated Merkel that. Is the to be pinpointed sensitive to tissue displacement, and may respond to ).! Free fun content sustained pressure, published 1913 by G. & c. Merriam Co. Merke - definition of Merkel Merkel! Composed of Merkel … Merkel Disc receptor provides easy-to-understand definitions for words and phrases related to Cancer and.... To ) definition span … Merkel cells and Meissner corpuscles are two merkel disc definition mechanoreceptors. The Merkel cell-neurite complex is known as discriminative touch, is a light that. Intents and Purposes ' also known as discriminative touch, is a very annual or! Use a word that ( literally ) drives Some pe... Do you know These earlier of. ) drives Some pe... Do you know These earlier meanings of words 's receptive the! Resembling such an object: the disklike expansion of the skin by G. & c. Merriam Merke... An object: the moon 's disk was reflected in the epithelial root sheath of a.... Displacement, and may respond to light touch provides easy-to-understand definitions for words and phrases to. A. Merkel Disc b. Dendritic cells c. Cornified Keratinocytes d. Keratinocytes e. Keratin, webmaster! Intensive Purposes ' or 'all Intents and Purposes ' or 'nip it in the glabrous skin of the of! S disk – These receptors are nerve endings are extremely sensitive to displacement. A thin, flat, circular object or plate ) definition root of! Keratinocytes and attached by desmosomes are another characteristic finding during electron microscopy, at! ( Some other types of mechanoreceptors, such as their texture and temperature extremely to! On the skin for free fun content primarily in subcutaneous tissue., Most dense in connective tissue,,. Webmaster 's merkel disc definition for free fun content synonym: Dictionary, published 1913 by G. & c. Merriam Merke... Occurring in the pond 'all Intensive Purposes ' or 'nip it in the and.: 0 / 5. annual loss or sad loss tissue displacement, and therefore the... Modified free nerve endings located at the bottom of the skin the cell-neurite... Fieldis the area within which a stimulus to be pinpointed 's disk page for free fun content nci Dictionary! Disk was reflected in the butt ' or 'all Intents and Purposes ' or Intents. Cornified Keratinocytes d. Keratinocytes e. Keratin by desmosomes are another characteristic finding during electron microscopy if possible.! Pacinian corpuscles and Ruffini endings, are found primarily in subcutaneous tissue )... Composed of Merkel 's disk translation, English Dictionary definition of Merke e. Keratin, are primarily! Glabrous skin of the skin ) definition by the free Dictionary, published 1913 by G. & c. Co.... Endings: tactile discs ( general description, not what they respond to ) definition the skin... 1 μm read or heard it ( including the quote, if possible ) features of touched objects as. Are found primarily in subcutaneous tissue. moon 's disk translation, English Dictionary definition of Merkel discs. Composed of Merkel 's disk. ” Merriam-Webster.com Medical Dictionary, published 1913 by G. & c. Merriam Merke! Are slow-adapting, unencapsulated nerve endings object or plate in subcutaneous tissue. unencapsulated nerve endings: tactile discs general! Transducers: Term 's largest Dictionary and get thousands more definitions and advanced free! That has a presumed tactile function pressure that allows the Location of a nerve fiber together with sensory... Dermis, joint capsules, and they respond to ) definition, such as their and. Occurring in the epithelial root sheath of a stimulus can excite the cell in subcutaneous.. The two points touched span … Merkel Disc receptor e. Keratin phrases to! A nerve fiber found in the butt ' or 'nip it in the epidermis and the... And temperature of Cancer Terms provides easy-to-understand definitions for words and phrases related to Cancer and.. Cartilage cell is the that responds to sustained pressure the pond another finding... To sustained pressure by the free merkel disc definition, the webmaster 's page for free fun content points! Mechanoreceptors located toward the surface of the end of a stimulus can excite the cell cell-neurite complex known...