International Record of Medicine and General Practice Clinics Volume 79

International Record of Medicine and General Practice Clinics Volume 79

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1904 edition. Excerpt: ...energy. It is only through the medium of food that energy or force can be supplied to the system. The food that is eaten furnishes the power for the various functions of the body. Without food all vital processes of the body would soon cease. In the generation of heat and work performed, the heart's action, respiration. glandular activity, and muscular work, there is continually an expenditure of force, and without a constant renewal of this force by means of food, all power of the system would soon be exhausted. Food is. therefore, simply the vehicle for transmitting this power to the body. The energy contained in food, however, cannot be utilized until the food matter is first transformed into definite assimilable compounds. The albuminoids must be changed into peptones by gastric digestion. They are then absorbed by the radicles of the portal system and conveyed to the liver, where they must undergo a further transformation. Peptones, as peptones, cannot be utilized by the tissue cells. In fact, it has been proved that when peptones are injected directly into the circulation they act as poisons to the system. The peptones, like all food stuffs, are so constructed that the ultimate cells of the body cannot break up their molecules and liberate the force they contain, for the functional activity of the various organs of the body and for heat and muscular work, without being first properly prepared for assimilation. The peptones must, therefore, be retransformed by the liver cells into serum albumin and globulin, etc., before they can be appropriated or utilized by the ultimate cells of the body. The sugars and starches after salivary, gastric, and intestinal digestion have converted them into maltose and dextrin, must be again...show more

Product details

  • Paperback | 1038 pages
  • 189 x 246 x 52mm | 1,810g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 123688292X
  • 9781236882929