Electron Microscopy of Skin and Mucous Membrane

The modified plasma membranes of the transition and horny cells in normal human

“…Since it was not possible to judge whether both the inner broad zone and the outer opaque layer belonged to the plasma membrane, or if the former represented a condensation of the cytoplasm immediately adjacent to the plasma membrane, Brody (1) suggested the term "cell boundary" for the two layers together. Zelickson (27) thought that the broad zone was the result of a fusion of the outer and inner leaflets of the plasma membrane of the non-corni fied cells. Matoltsy et al ( r8, rg) and Matoltsy ( 17) suggest that the so-called membrane-coating granules ( 18) fuse with the plasma membrane of the stratum-inter medium cells.…”