Question
What happens when a nerve impulse reaches the end of a neuron?
• A. The nerve impulse stops.
• B. Neurotransmitters are released and bind to receptors on the next
neuron, causing potassium ions to move into the neuron.
C. Potassium ions are pumped into the synapse, creating an action
potential at the next neuron.
D. Potassium ions cause the synapse to close, allowing the impulse
to pass directly to the next neuron.
Answer
B. Neurotransmitters are released and bind to receptors on the next neuron, causing potassium ions to move into the neuron.