試題詳解

60. What prevents an action potential from propagating in both directions along an axon?
(A) During the refractory period, a patch of membrane cannot conduct another action potential.
(B) The sodium channels allow the passage of ions in only one direction.
(C) ATP stores are temporarily exhausted following an action potential.
(D)The sodium-potassium pumps are temporarily disabled by an action potential.
(E) All of the above