stratum granulosum
begins with progressive keratinization in this " granule cell layer " already the degradation of the cells, they gradually turn into lifeless keratinocytes. The outer shape is gradually flattened and the cell becomes more and more dominated by Keratingranula. The nucleus is not as well defined as in the stratum spinosum.
stratum lucidum
Also known as "clear layer" designated Stratum lucidum is a very uniform appearance under the microscope cell layer, which occurs only at the marked strips skin of the hands and feet. It has the task of a barrier against all forms of intrusion into the skin show. It consists mainly of an oily layer with lower refractive differences (so it appears transparent). In the fields of skin and therefore it is hardly designed to recognize only a thin strip below the cell andersfärbiger almost unstructured stratum corneum and forms the transition layer for strongly inhomogeneous granule cell layer.
stratum corneum
The transition to the stratum corneum, the outermost layer of the epidermis occurs abruptly. The now fully keratinized corneocytes are now called "horny cells", the "horny layer" that can be thick, depending on the region of 12-200 cell layers. The cells of this epidermis are dead and do not contain organelles more. Between the fat cells, together with the horn cells, a water-repellent layer.
stratum disjunctum
disjunctum The stratum is the uppermost layer of the cornea, it has to air inclusions another contrast than the underlying material. Here the horn cells separated from each other by dissolving the contacts between the cells. Normally, this process is invisible to the naked eye. When disturbed coordination of the corneocytes desquamation solve in larger organizations. Aggregations from 500 cells are visible with the naked eye, skin flakes.
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