The Urologic and Cutaneous Review

The Urologic and Cutaneous Review

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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. 1919 edition. Excerpt: ... results. These good results are durable as well as immediate. $ 55 9: ' KIDNEY FUNCTION IN DISEASE. H. Elwyn (, /oumal of Urology) points out that the kidney vessels have in their vasomotor nerves a regulating mechanism which is very sensitive to reflex stimuli. The resulting filtrate contains all the soluble constituents of the blood, with the exception of the colloid substances, to the large molecules of which Bowman's capsule is impermeable. Filtration through Bowman's capsule, l'ke filtration through any other membrane depends on (I) the difference in pressure on the two sides of the membrane; (2) the character of the membrane; changes in the character of the membrane may alter its permeability, as for instance, insufficient oxygen supply increases resistance to permeation; (3) the nature of the filtrating fluid. The function of the tubules is to concentrate the fluid received from the capsule so as to preserve the water and certain salts for the body economy. These are threshold bodies because they are only excreted when they exceed a certain threshold value in the blood. while others which are excreted in proportion to their absolute values in the blood are not absorbed by the tubules but escape by the ureters. The tubules absorb sodium, potassium. calcium. chloride and dextrose and a minute amount of uric acid. The excess of the threshold bodies, together with the non-threshold bodies, such as urea, sulphates and foreign substances, none of which are absorbed by the tubules, pass on to the ureters. The kidney, though hitherto supposed to be a secretory gland, has, unlike every other secreting gland of the body, no secretory nerve supply or any other nerve supply except vasomotor, contractor and dilator fibers. Search for vagus...
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Product details

  • Paperback | 50 pages
  • 189 x 246 x 3mm | 109g
  • United States
  • English
  • black & white illustrations
  • 1236901355
  • 9781236901354