Phase-plane trajectories of atrial cell action potentials: effects of temperature reduction
- 1 July 1974
- journal article
- research article
- Published by Oxford University Press (OUP) in Cardiovascular Research
- Vol. 8 (4) , 451-459
- https://doi.org/10.1093/cvr/8.4.451
Abstract
A study has been made of atrial transmembrane potentials of rabbit and guinea pig hearts. In addition to the voltage-time record the first time derivative of the action potential was displayed as a function of voltage, yielding a phase-plane trajectory. A number of parameters of the action potential were determined from the trajectory, assuming cable behaviour. The validity of this assumption is discussed, and the effects of temperature reduction determined.Keywords
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