Elements of human physiology / by Henry Power.

  • Henry Power
Date:
1888
Catalogue details

Licence: Public Domain Mark

Credit: Elements of human physiology / by Henry Power. Source: Wellcome Collection.

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    and potassium cbloride. Sodium chloride is very widely distributed through the body, no tissue or fluid being destitute of it. It constitutes about four parts per 1,000 of the blood, and varies only to a small extent whether much or little is ingested with the food. The desire for it when, from any circumstance, the quantity supplied in the diet of the animal is in- sufficient, is imperious. Boussingault showed many years ago that when, of two sets of oxen, one was allowed the unrestricted use of salt, and the other was as far as possible deprived of its consumption, a marked contrast was observable between them, and manifestly to the advantage of the former, the fat being more abundant and the hide in better condition. Briicke mentions that many military deserters, who live a bandit life in the mountains of Salzburg and Carin- thia, risk their liberty and even lives to obtain it in town or village. The tax or gabelle on salt is always a productive one. If salt be completely excluded from the food albumen soon appears in the urine. Sodium carbonate and sodium phosphate confer alkalinity upon the blood, thus aiding in the solution of its albumen, promoting its passage along the capillaries, and playing an important part in the absorption of gases, and con- sequently in the process of respiration. The gases of the body are 0, and perhaps ozone, H, N, CO,, CH„ NH3, and H^S. The proximate org^anic compouitdis may be divided into two groups; the nitrogenous, and the non-nitrogenous. The chief nitrogenous or azotised compounds are : Proteids, including the albumins, fibrin, casein, globulin, and peptones; the Albuminoids, mucin, chondrin, glutin, keratin, elastin, and ferments ; the Biliary acids ; Cerebrin, lecithin, and many others. The principal non-azotised compounds are the Sugars : grape sugar, milk sugar, inosite, glycogen,
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