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Table 1 Chemical gradients and reversal potentials for amphibian oocyte models

From: Bioelectric memory: modeling resting potential bistability in amphibian embryos and mammalian cells

Ion

Intracellular (mM)

Extracellular (mM)

Reversal potential (mV)

Na+

21

10

−19

K+

90

0.2

−156

Cl−

60

10.4

45

Ca++

0.5

0.2

−12

Na + K (for HCN channels)

  

−78