試題詳解

4. Which one of the following statements is appropriate?
(A) Na+ channel activation is involved in the initiation of action potential of neurons.
(B) Ca2+ channel activation is responsible for the repolarization of cardiac excitable cells.
(C) GABAA receptor is a voltage-gated Cl- channel.
(D) The resting membrane potential of most excitable cells is around 70 mV.