An Action Potential Has Just Reached the Axon Terminal

question 130

Multiple Choice

An action potential has just reached the axon terminal. What happens next?

• A)Neurotransmitter vesicles are absorbed back into the cell."
• B)Calcium channels open and calcium floods the terminal."
• C)Sodium is released into the synaptic cleft."
• D)Potassium channels open and potassium floods the cell."

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Definitions:

Weapons Effect

The mere presence of a weapon increases the probability that it will be used aggressively.

Aggression-likelihood Model

A theoretical model proposing how certain factors increase or decrease the likelihood that individuals will behave aggressively in given situations.

Neo-associationist Analysis

A psychological theory suggesting that emotions and behavior are the result of complex associations formed through experiences.

Excitation-transfer Model

A psychological theory suggesting that arousal caused by one stimulus can be transferred and add to the arousal elicited by a second stimulus, intensifying the overall emotional experience.