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Updated: May 25, 2025
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.
He had examined infants of six or seven months that had cried and lived a few days, and had found the alveolar cavities filled with epithelial cells, the lung sinking when placed in a vessel of water. Charpentier reported a case of premature birth in his practice, the child being not more than six and a half months and weighing 33 1/2 ounces.
If the cyst ruptures, the epithelial elements are diffused over the peritoneum, and may give rise to secondary dermoids. [Illustration: FIG.
The epithelial cells are not arranged on any definite plan, but are closely packed in irregularly shaped alveoli. If the alveoli are large and the intervening stroma is scanty and delicate, the tumour is soft and brain-like, and is described as a medullary or encephaloid cancer.
Hot baths, besides their use for the purposes of cleanliness, have a sedative influence upon the nervous system, tending to allay restlessness and weariness. They are excellent after severe physical or mental work, and give a feeling of restful comfort like that of sleep. Epithelial Cells from the Sweat Glands.
"the functions of the central nervous system, which were originally taken by the whole skin, became gradually concentrated in a special part of the skin which was step by step removed from the surface, and has finally become in the higher types a well-defined organ imbedded in the subdermal tissues.... The embryological evidence shows that the ganglion-cells of the central part of the nervous system are originally derived from the simple undifferentiated epithelial cells of the surface of the body."
This mysterious transmutation of one thing into another, as organic matter into living organisms, is due to a vitally implanted principle, not to these little bioplasts, or mere epithelial and other tools with which the vital principle works.
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