10 Questions
Which term best describes a substance that increases the effect of a neurotransmitter at a receptor?
Agonist
What happens when a neurotransmitter is downregulated to compensate for increased neurotransmitter activity?
The receptor activity decreases
What is the primary effect of an antagonist on a neurotransmitter at a receptor?
Blocks the effect
In pharmacokinetics, which term describes a substance that decreases the effect of a neurotransmitter at a receptor?
Antagonist
What type of drug directly interacts with a receptor to exert its effects?
Direct agonist
Which of these statements is true regarding partial agonists?
They fully activate receptors
What characterizes the withdrawal symptoms of heroin when the body is not sufficiently stimulated?
Misery and agitation
Which of the following describes an indirect method of an agonist or antagonist's action at a receptor?
Affecting neurotransmitter levels in the synapse
What happens to the effect of a neurotransmitter when an antagonist is present?
It decreases
In pharmacokinetics, which term describes a substance that decreases the effect of a neurotransmitter at a receptor?
Antagonist
Test your knowledge on the factors influencing pharmacokinetics, therapeutic index, tolerance, major neurotransmitters, agonists, antagonists, and the effects of legal and illegal drugs on synaptic transmission. This quiz is based on the learning objectives of Hebert's PSY 454 Chapter 4.
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