試題詳解

40. Which of the following response is triggered by the activation of acetylcholine receptor on skeletal muscle, a ligand-gated channel?
(A) hyperpolarization by allowing ions to exit the muscle fiber
(B) depolarization by allowing ions to leave the muscle fiber
(C) depolarization by allowing ions to enter the muscle fiber
(D) repolarization by activating second messenger systems within the muscle fiber
(E) depolarization by allowing ions to enter the muscle fiber