Electrical activity of the pulmonary vein and its interaction with the right atrium in the guinea-pig.

@article{Cheung1981ElectricalAO,
  title={Electrical activity of the pulmonary vein and its interaction with the right atrium in the guinea-pig.},
  author={Donald Cheung},
  journal={The Journal of physiology},
  year={1981},
  volume={314},
  pages={445-56}
}
1. The tunica media of the proximal segments of the pulmonary vein is made up of cardiac muscle cells. The electrical activity of this cardiac portion of the pulmonary vein was studied with intracellular micro-electrodes in isolated preparations. 2. All-or-none action potentials were recorded in all cardiac muscle cells in response to electrical stimulation. These action potentials did not propagate into the adjoining smooth muscle cells. 3. There were differences in properties between cells at… CONTINUE READING

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