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Atrial action potential

In electrocardiography, the atrial action potential are action potentials that occur in the heart atrium. They are similar to ventricular action potential with the exception of having a more narrow phase 2 (plateau phase) due to a smaller calcium influx. Also, in comparison to the ventricular action potential, atrial action potentials have a more gradual repolarization period.[1] This indicates that the atria's repolarization currents are not very large and they do not undergo a large repolarization peak.[2]

See also

Cardiac action potential

References

  1. ^ Vigmond E.J, Tsoi V, Yin Y, Page P, & Vinet A. (2009). Estimating Atrial Action Potential Duration from Electrograms. IEEE Transactions on Biomedical Engineering (pp. 1546-1555). Vol. 56, No 5. Retrieved on March 27, 2012.
  2. ^ Vigmond E.J, Tsoi V, Yin Y, Page P, & Vinet A. (2009). Estimating Atrial Action Potential Duration from Electrograms. IEEE Transactions on Biomedical Engineering (pp. 1546-1555). Vol. 56, No 5. Retrieved on March 27, 2012.


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