What Triggers the Release of a Neurotransmitter from the Presynaptic

question 6

Multiple Choice

What triggers the release of a neurotransmitter from the presynaptic neuron vesicles?

• A)Sodium ions
• B)Potassium ions
• C)Electrons
• D)Calcium ions

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Definitions:

Excitatory

Referring to something that increases the likelihood of a nerve impulse in the neuron, often through neurotransmitters that promote action potentials.

Inhibitory

Characterized by or acting to restrain, hinder, or suppress physiological or psychological action.

Electrical

Pertaining to the technology of electricity; relating to, producing, or operated by electric currents or fields.

Axon

The long, slender projection of a nerve cell, or neuron, that typically conducts electrical impulses away from the neuron's cell body.