AP and TS EAMCET Medical Model Paper 1

Question : 58 of 160

Marks: +1, -0

Hyperpolarising phase coincides with the period during which

1) Both the activation and inactivation gates of sodium voltage gated channels are closed and potassium gate is open
2) Activation gate of sodium is open,inactivation gate of sodium is open and potassium gate is open
3) Both the gates of sodium are open and potassium gate is closed
4) Activation gate of sodium is closed and inactivation gate of sodium is open and potassium gate is open

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