When an Action Potential Arrives at an Axon Terminal, It

question 21

Multiple Choice

When an action potential arrives at an axon terminal, it causes the opening of _______ channels, which triggers fusion of neurotransmitter vesicles with the cell membrane.

• A) calcium
• B) sodium
• C) potassium
• D) chloride
• E) acetylcholine

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Definitions:

Generalized Anxiety Disorder

A mental health disorder characterized by excessive, uncontrollable worry about everyday things, affecting the individual's daily life and functioning.

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The act of speaking in front of a live audience with the intention to inform, persuade, or entertain.

Compulsion

An irresistible urge to perform an irrational or unnecessary act or behavior repeatedly.

Obsession

A persistent, intrusive, and unwanted thought or impulse that causes significant distress or anxiety.