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In order for an action potential to travel from one neuron to another across a synapse, the pre-synaptic and post-synaptic neurons must utilize certain voltage-gated and ligand-gated channels.

Which of the following ordered pairs includes the type of channel found at the pre-synaptic terminal as well as the type of channel found at the post-synaptic terminal of a synapse?

A

Voltage-gated sodium channels; ligand-gated calcium channels.

B

Voltage-gated potassium channels; ligand-gated sodium channels.

C

Voltage-gated calcium channels; ligand-gated sodium channels.

D

Ligand-gated calcium channels; voltage-gated potassium channels.

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