A Textbook of Physiology of Nurses

A Textbook of Physiology of Nurses

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1918 edition. Excerpt: ...by columnar epithelium, usually coiled and having a thin muscular coat surrounding the larger ducts. The average quantity of sweat in twenty-four hours is from 700 to 900 grams, though the amount varies greatly with the temperature and moisture of the atmosphere and the exertion of the individual. It is a thin watery fluid with a low specific gravity and an alkaline reaction, which contains chloride of soda, urea, uric acid and various other organic bodies. The influence of profuse sweating on the amount of urine has already been stated. To a limited degree the skin, through 0 the sweat glands, can relieve the overburdened kidneys, a fact which is taken advantage of to induce sweating, by drugs or other means, when the kidneys do not properly perform their function, as in the condition of eclampsia which sometimes endangers a woman in childbearing. Nerve Control.--There is reason to conclude that there is a sweat center, probably, in the medulla and perhaps subsidiary centers in the cord. Secretory fibers are carried directly to the glands and are ordinarily excited by high temperature, which acts reflexly through the central nervous system. Heat alone will not cause sweating. In the high temperatures of fever, sweating is notably absent, while' present in profuse degree in the pale skin of the terror stricken. This proves, also, that an increase in the amount of blood in the skin is not enough to cause sweat, and that a decrease does not prevent its secretion. Many drugs, like pilocarpin will increase the activity of the sweat glands and some, like atropin will paralyze the secretory fibers. Sebaceous Glands--These simple or compound alveolar glands are usually found associated with the hairs, when their ducts open directly into the hair, ..show more

Product details

  • Paperback | 38 pages
  • 189 x 246 x 2mm | 86g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236533909
  • 9781236533906