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Sagot :
Since there are several open channels, the membrane is permeable to K+ when at rest. The equilibrium potentials for sodium (ENa) and potassium (ENa) are +60 mV and 90 mV, respectively.
- The main determinant of the resting membrane potential is K+ permeability.
- The permeability of Na+ Although it contributes, the resting membrane potential is not primarily determined by this factor.
- -70 mV membrane potential: The cell's resting membrane potential
- -90 mV membrane potential: the time when neither a net inflow nor an outflow of K + occurs in the cell.
The membrane is more permeable to potassium than sodium while it is at rest because significantly more potassium channels are open than sodium channels.
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