Stump currents in regenerating salamanders and newts.

@article{Borgens1984StumpCI,
  title={Stump currents in regenerating salamanders and newts.},
  author={Richard Ben Borgens and M. E. McGinnis and Joseph W. Vanable and Emerett Sandford Miles},
  journal={The Journal of experimental zoology},
  year={1984},
  volume={231 2},
  pages={
          249-56
        }
}
We report here that a variety of salamanders and newts from differing habitats all drive a steady ionic electric current out of the forelimb stump tip after forelimb amputation. Several hours after amputation the density of this stump current ranges from about 10 to 100 microA/cm2 in most species, and declines with time. In most cases, the magnitude of the stump current is dependent on the concentration of Na+ in the external medium (an artificial pondwater), suggesting that the well-known Na… CONTINUE READING

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