horny layer


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Noun1.horny layer - the outermost layer of the epidermis consisting of dead cells that slough off
epidermis, cuticle - the outer layer of the skin covering the exterior body surface of vertebrates
stratum - one of several parallel layers of material arranged one on top of another (such as a layer of tissue or cells in an organism or a layer of sedimentary rock)
References in periodicals archive ?
DID YOU ever wonder how keratinocytes at the bottom of the epidermis turn into squames at the top of the horny layer? They follow the same process that happens when, starting with a fertilized egg, we end up with a healthy human being.
This is reflected clinically by profuse scaling histologically by a greatly thickened epidermis with increased mitotic activity and by the presence of immature nucleated cells in the horny layer and under the electron microscope by reduced production of intracellular filaments and granules seen within normal keratinization and biochemically by increased synthesis and degradation of nucleoproteins.4 Psoriasis is associated with changes in blood biochemistry too.