Elofsson Rolf, Kröger Ronald H H
Unit of Functional Zoology, Department of Biology, Lund University, Lund, Sweden.
J Morphol. 2020 Mar;281(3):413-419. doi: 10.1002/jmor.21108. Epub 2020 Jan 29.
A new morphological type of somatosensory organ is described. It is found in the glabrous skin of the dog nose (rhinarium or planum nasale) and situated in dermis papillae. The otherwise thick epidermis forms a thin window above the organ. There are only a few layers of keratinocytes in the window and the corneocytes are much thinner than elsewhere. The organ consists of highly branching cells that wrap naked nerve endings emanating from myelinated nerve fibers originating in the outer dermal nerve plexus. The structure entirely fills the top of the dermal papilla. The intercellular spaces of the organ and its surroundings are occupied by an extended areolar basal lamina.
描述了一种新的体感器官形态类型。它存在于犬鼻无毛皮肤（鼻镜或鼻平面）中，位于真皮乳头内。原本较厚的表皮在该器官上方形成一个薄窗口。窗口处仅有几层角质形成细胞，且角质细胞比其他部位薄得多。该器官由高度分支的细胞组成，这些细胞包裹着来自起源于真皮外神经丛的有髓神经纤维发出的裸露神经末梢。该结构完全填充真皮乳头顶部。该器官及其周围的细胞间隙被延伸的乳晕基底层占据。
