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A complex sensory organ in the nose skin of the prosimian primate Lemur catta.

Elofsson, Rolf LU ; Tuminaite, Inga and Kröger, Ronald LU (2015) In Journal of Morphology 276(6). p.649-656
Abstract
Most mammals have nose tips covered by glabrous skin, a labronasal area, or rhinarium. The surface of the rhinarium of Lemur catta has a dermatoglyphic pattern consisting of epidermal domes. Below the domes, epidermal pegs dip down into the dermis. In and below the tip of the epidermal peg, a complex sensory organ is found. It consists of an association of innervated Merkel cells, lamellate (Pacini-like) bodies with a central nerve, and a ring of unmyelinated nerve endings in the epidermis. The Merkel cells are situated basally in the epidermis and the lamellated bodies just below the epidermis. The unmyelinated nerve endings related to the organ ascend in a circle straight through the epidermis ending below the corneal layer. From these... (More)
Most mammals have nose tips covered by glabrous skin, a labronasal area, or rhinarium. The surface of the rhinarium of Lemur catta has a dermatoglyphic pattern consisting of epidermal domes. Below the domes, epidermal pegs dip down into the dermis. In and below the tip of the epidermal peg, a complex sensory organ is found. It consists of an association of innervated Merkel cells, lamellate (Pacini-like) bodies with a central nerve, and a ring of unmyelinated nerve endings in the epidermis. The Merkel cells are situated basally in the epidermis and the lamellated bodies just below the epidermis. The unmyelinated nerve endings related to the organ ascend in a circle straight through the epidermis ending below the corneal layer. From these nerve terminals, horizontal spikes enter the keratinocytes. The three components occur together forming an organ and are innervated from a common nerve plexus. The morphology of the complex sensory organ of the lemur shares most crucial components with Eimer's organs in moles, echidna, and platypus, while some structures are lacking, for example, the specific central pillar of keratinocytes, the cuticular cap, and a central unmyelinated fiber. The presence of the essentials of an Eimer's organ in many mammals suggests that a wider definition is motivated. J. Morphol., 2015. © 2015 Wiley Periodicals, Inc. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Morphology
volume
276
issue
6
pages
649 - 656
publisher
John Wiley & Sons
external identifiers
  • pmid:25645577
  • wos:000354740800003
  • scopus:84929485897
ISSN
1097-4687
DOI
10.1002/jmor.20363
language
English
LU publication?
yes
id
411fa269-2cf5-4594-9408-d8770b9cf231 (old id 5145609)
date added to LUP
2015-03-09 11:21:04
date last changed
2017-11-12 03:17:37
@article{411fa269-2cf5-4594-9408-d8770b9cf231,
  abstract     = {Most mammals have nose tips covered by glabrous skin, a labronasal area, or rhinarium. The surface of the rhinarium of Lemur catta has a dermatoglyphic pattern consisting of epidermal domes. Below the domes, epidermal pegs dip down into the dermis. In and below the tip of the epidermal peg, a complex sensory organ is found. It consists of an association of innervated Merkel cells, lamellate (Pacini-like) bodies with a central nerve, and a ring of unmyelinated nerve endings in the epidermis. The Merkel cells are situated basally in the epidermis and the lamellated bodies just below the epidermis. The unmyelinated nerve endings related to the organ ascend in a circle straight through the epidermis ending below the corneal layer. From these nerve terminals, horizontal spikes enter the keratinocytes. The three components occur together forming an organ and are innervated from a common nerve plexus. The morphology of the complex sensory organ of the lemur shares most crucial components with Eimer's organs in moles, echidna, and platypus, while some structures are lacking, for example, the specific central pillar of keratinocytes, the cuticular cap, and a central unmyelinated fiber. The presence of the essentials of an Eimer's organ in many mammals suggests that a wider definition is motivated. J. Morphol., 2015. © 2015 Wiley Periodicals, Inc.},
  author       = {Elofsson, Rolf and Tuminaite, Inga and Kröger, Ronald},
  issn         = {1097-4687},
  language     = {eng},
  number       = {6},
  pages        = {649--656},
  publisher    = {John Wiley & Sons},
  series       = {Journal of Morphology},
  title        = {A complex sensory organ in the nose skin of the prosimian primate Lemur catta.},
  url          = {http://dx.doi.org/10.1002/jmor.20363},
  volume       = {276},
  year         = {2015},
}