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The Magnitude of the Skimming Phenomenon in the Interlobular Arteries of the Cat Kidney

1965; Wiley; Volume: 64; Issue: 1-2 Linguagem: Inglês

10.1111/j.1748-1716.1965.tb04156.x

1365-201X

Ole I. Nissen,

Renal function and acid-base balance

Abstract Nissen, O. I. The magnitude of the skimming phenomenon in the interlobular arteries of the cat kidney . Acta physiol. scand. 1965. 64 . 87–92. – Samples simultaneously collected from the arterial system, from the deep renal veins and from the subcapsular renal veins in the cat kidney have been analysed with respect to red cell volume, plasma proteins, plasma osmolality (and plasma PAH). The ratio: subcapsular venous concentration/arterial concentration was on an average 1.10 for the red cells, 1.09 for the plasma proteins, and 0.99 for plasma osmolality. The ratio: deep venous concentration/arterial concentration was on an average 0.90 for the red cells, 0.89 for the proteins, and 1.03 for the osmolality. The difference between the protein ratios and a part of the difference between the hematocrit ratios may be attributed to the fact that a part of the fluid lost by ultrafiltration from the blood traversing the outer cortex is reabsorbed in the loops of Henle and the collecting ducts and thus will be added to the blood leaving the kidney by way of the deep veins. A smaller part of the difference between the hematocrit ratios may be explained from the alterations in the tonicity of the blood during its passage through the kidney.