Multiple choice

What is the critical level to which the membrane potential must be depolarised in order to initiate an action potential?

  1. Depolarisation

  2. Resting potential

  3. Threshold potential

  4. Refractory period

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The threshold potential is the critical level to which the membrane potential must be depolarised in order to initiate an action potential.