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Even the fluid from a blister, in virtue of the isolated cells of the rete Malpighii which it contains, is capable of starting epithelial growth on a granulating surface. Hairs and nails may be completely regenerated if a sufficient amount of the hair follicles or of the nail matrix has escaped destruction.
While these changes are taking place in the deeper parts of the wound, the surface is being covered over by epidermis growing in from the margins. Within twelve hours the cells of the rete Malpighii close to the cut edge begin to sprout on to the surface of the wound, and by their proliferation gradually cover the granulations with a thin pink pellicle.
The warm, soft, creamy skin is nothing to him but epidermis, stratum mucosum Malpighii; the white, sculptured neck only the regio nuchæ, and then comes the regio scapularis, the deltoidea, and then the sacrospinalis. What a fuss they make about that ascetic who resisted the temptations of the flesh when tried by the evil spirit in the shape of Lilith!
Von Hasselt thinks that probably chloride of silver is deposited in the rete malpighii, which is blackened by the action of light, or that sulphide of silver is formed by direct union of the silver with the sulphur of the epidermis.
#Structure of Skin.# The skin is composed of a superficial cellular layer the epidermis, and the corium or true skin. The epidermis is differentiated from without inwards into the stratum corneum, the stratum lucidum, the stratum granulosum, and the rete Malpighii or germinal layer, from which all the others are developed.
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