In the Process of Beginning an Action Potential,the Threshold Refers

question 259

Multiple Choice

In the process of beginning an action potential,the threshold refers to

• A) neuron extensions that conduct messages toward the cell body.
• B) a minimum intensity of excitatory minus inhibitory stimulation.
• C) neuron extensions that send messages to other neurons.
• D) the junction between a sending and receiving neuron.

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Definitions:

Addictive Drugs

Substances that cause dependence and compulsive use, characterized by a need to increase dosage due to tolerance and by physiological and psychological withdrawal symptoms.

Cocaine

A powerful and addictive stimulant derived from the coca plant; produces temporarily increased alertness and euphoria.

Marijuana

A psychoactive drug derived from the Cannabis plant, used both recreationally and medicinally to produce feelings of relaxation and euphoria but may also result in altered perceptions and mood.

Withdrawal

The symptoms experienced by an individual when reducing or discontinuing the intake of a substance they are dependent on.