The ultrastructure of the corneal epithelium of the rabbit by transmission and scanning electron microscope

The ultrastructure of the corneal epithelium of the rabbit by transmission and scanning electron microscope

ISCk .\ I!YTl1A~“U,~ The ciliary processes bore the main brunt of the VV ouclunion because of marked ~r>~ur~~‘nr~tit of the sub-epithelial capillari...

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ISCk

.\ I!YTl1A~“U,~

The ciliary processes bore the main brunt of the VV ouclunion because of marked ~r>~ur~~‘nr~tit of the sub-epithelial capillaries. On occlusion; of one (~1‘ two \-1’s, instead of the uorili:ii .~
The Ultrastructure of the Cornea1 Epithelium of the Rabbit by Transmission and Scanning Electron Microscope J. U. SCJWEICHEL,

F. HOBFDUN,

L. DUNITRESU-,

Berlin

Comparison of transmission and scanning EM methods of examining the cornea1 epitheli~uu of the rabbit using various methods of fixation confirms the hypothesis that cells, which pass from the depth of the epitholium to the surface, contain at first a great number of microvilli, which later diminish with the increase in cell size. At the stage of cell death, immediately before ejection, there are hardly any microvilli left in the cells. The morphology of necrotic cells (so-called physiologic cell death) is demonstrated electronmicroscopically, and parallels to embryonal skin are established. The thesis, that the cornea remained in the embryonal st.age of the less different,iated ectomesoderm, is being discussed.

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Glycoproteins and Collagen modifications in the Course of Human and Animal Diabetes F. REGNAULT

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