dxtxpx
Forum Guru
Topics: 259
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Which ion efflux is associated with Phase III replorization in seen in cardiac tissue?
a) Na+
b) Mg+2
c) K+
d) Ca+2
e) Cl-
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| mahendra
Forum Guru
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Posts: 419
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K+
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| asmi
Forum Hero
Topics: 1043
Posts: 4,609
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yes its C
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| dxtxpx
Forum Guru
Topics: 259
Posts: 1,233
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Correct K+
The predominant ionic fluxes associated with each phase of cardiac action potential are
Phase I = Na+
Phase II = Ca+2
Phase III = K+
Phase IV diastolic depolarization = Ca+2 & Na+
Diastolic depolarization in pacemaker cells is responsible for generation of normal cardiac rhythms.
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