Multiple choice

The nature of a nerve impulse is primarily a/an __________ event, whereas, the nature of the communication between neurons is primarily a/an __________ event.

  1. chemical, electrical

  2. acetylcholine, catecholamine

  3. dendrite, axon

  4. electrical, chemical
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Within a neuron, the action potential (nerve impulse) is an electrical event caused by ion movement. Communication BETWEEN neurons at synapses is primarily chemical (neurotransmitters). Acetylcholine and catecholamine are specific neurotransmitters, not event types. Dendrites and axons are neuron structures.

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