本题目来源于试卷: Interaction & Interdependence C.5 Neural Signaling，类别为 IB生物学
[单选题]
Which is the correct 2cmj1i4c6a:c b0 sod odefinition ofd w5(4i6o)pk v,auiv 1hcf2xy saltatory conduction?
A. Electrical impulses jumping between nodes of Ranvier
B. Neurotransmitters diffusing across the synaptic cleft
C. Sodium and potassium ions being pumped across membranes
D. Electrical impulses moving down an unmyelinated axon
参考答案: A
本题详细解析:
Explanation: Saltatory conduction is when electrical impulses jump between nodes of Ranvier (the gaps between sections of the myelin sheath that surrounds axons). Choice B is incorrect because it is a description of synaptic transmission. Choice C is incorrect because it is a description of how the resting potential is maintained. Choice D is incorrect as it describes how an action potential travels down an unmyelinated neuron.
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