HAP9.3-9.4 Action Potentials Review

What kind of signal is an action potential?

• chemical

• electrical

Tags

NGSS.HS-PS2-5

Neuron resting potential

• -70mV

• -55mV

• +30mV

• <70mV

Threshold to initiate an action potential

• -70mV

• -55mV

• +30mV

• <70mV

Depolarized membrane potential

• -70mV

• -55mV

• +30mV

• <70mV

Hyperpolarized membrane potential

• -70mV

• -55mV

• +30mV

• <70mV

Polarized membrane potential

• -70mV

• -55mV

• +30mV

• <70mV

Maintained by NA/K pumps and leak channels

• -70mV

• -55mV

• +30mV

• <70mV

Tags

NGSS.HS-LS1-3

State maintained by NA/K pumps and leak channels

• polarized

• depolarized

• hyperpolarized

Results from opening of gated Na channels

• polarized

• depolarized

• hyperpolarized

Results from opening of gated K channels

• polarized

• depolarized

• hyperpolarized

Tags

NGSS.HS-PS2-5