Urea flux in the ureter.

  title={Urea flux in the ureter.},
  author={Buddy Walser and Yoram Yagil and Rex L. Jamison},
  journal={The American journal of physiology},
  volume={255 2 Pt 2},
It has been hypothesized that urea from the final urine is recycled into the renal papilla through the pelvic epithelium. To test this hypothesis, samples of urine were collected by micropuncture proximally and distally through the intact, contracting ureter of the anesthetized rat. In 12 rats, in which urine flow was 5.89 +/- 0.67 microliter/min (a moderate antidiuresis), the ratio of proximal-to-distal urea concentration, corrected for water movement, was 0.93 +/- 0.03 (P less than 0.01… CONTINUE READING

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