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. 2017 Apr 4;7:45482. doi: 10.1038/srep45482

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Copyright © 2017, The Author(s)

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(a) ED epithelium displaying cuboidal ribosome rich like cells (RRLC) connected with junctional complexes (black arrows) and capillaries (c) beneath the epithelium. The ED epithelium basal infoldings (BI) are clearly visible. a’) High magnification image displaying a junctional complex of the ED containing a desmosome (black arrow heads) but no membraneous kissing points. (b) Proximal sac portion (PSP) and intermediate sac portion (ISP) epithelium containing mitochondria rich cells (MRCs) and ribosome rich cells (RRCs) all connected with junctional complexes. (b’) High magnification image showing a long junctional complex with several membraneous kissing points (empty arrows) and 2 desmosomes. (c) Distal sac portion (DSP) epithelium containing ribosome rich cells (RRCs) connected with junctional complexes. (c’) High magnification image showing a junctional complex between two ribosome rich cells (RRCs) containing at least five kissing points and a desmosome in close proximity. BI basal invagination; EC endothelial cell; Mit mitochondrion. Scale bars A–C: 2 μm; A’–C’ 500 nm.