Ion Channels and Neurotransmission Quiz

What is the role of VSSCs in axonal transmission?

• Allowing calcium to enter the neuron

• Causing functional changes in the postsynaptic neuron

• Facilitating neurotransmitter release

• Propagating the electrical impulse along the axon

What triggers calcium entry at the axon terminal?

• Neurotransmitter release

• Sodium influx

• Electrical impulse

• VSCCs activation

How are neurotransmitters received by the postsynaptic neuron?

• Through ligand-gated ion channels

• Through voltage-gated ion channels

• Through calcium influx

• Through synaptic vesicles

What is the process that converts the chemical message from neurotransmitters back into an electrical nerve impulse in the postsynaptic neuron?

• Long-term potentiation

• Excitation–secretion coupling

• Neurotransmitter reception

• Nerve impulse generation

What is the role of VSCCs in synaptic transmission?

• Facilitating neurotransmitter release

• Allowing sodium to enter the neuron

• Causing functional changes in the postsynaptic neuron

• Propagating the electrical impulse along the axon

What is the mechanism of excitation–secretion coupling?

• VSCCs opening in response to the electrical charge change

• Sodium influx causing synaptic vesicles to dock

• Calcium entry triggering neurotransmitter release

• Neurotransmitter reception by ligand-gated ion channels

What is the process that involves both VSSCs and VSCCs, along with ligand-gated ion channels?

• Neurotransmission process

• Synaptic vesicle docking

• Neurotransmitter reception

• Nerve impulse generation

What is the main function of ligand-gated ion channels on the dendrites of the postsynaptic neuron?

• Translating chemical message to nerve impulse

• Receiving released neurotransmitters

• Facilitating neurotransmitter release

• Causing functional changes in the postsynaptic neuron

What causes functional changes in the postsynaptic neuron?

• Calcium influx

• VSSCs opening in sequence

• Long-term potentiation

• VSCCs activation

What is the process that allows sodium to enter the neuron sequentially?

• VSSCs activation

• VSCCs activation

• Nerve impulse generation

• Neurotransmitter reception