Functional Roles of Cannabinoid Receptors Quiz
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Questions and Answers

Which neuroadaptive state occurs in response to long-term occupation of opioid receptors?

  • Sensitization
  • Dependence (correct)
  • Tolerance
  • Hyperactivity

What is a common symptom of opioid withdrawal related to pain and irritability?

  • Restlessness and insomnia (correct)
  • Tranquilization
  • Relaxation and sleep
  • Euphoria

Which effect is NOT associated with acute opioid use?

  • Pupil constriction
  • Increased blood pressure (correct)
  • Pupil dilation
  • Diarrhea

What is the primary effect of opioids on adenylyl cyclase and cAMP production?

<p>Inhibit production (B)</p> Signup and view all the answers

Which drug is mentioned as the most potent in the text regarding hallucinogens?

<p>LSD (C)</p> Signup and view all the answers

What is a common consequence of taking hallucinogenic drugs orally?

<p>Delayed onset of action by 30-90 minutes (D)</p> Signup and view all the answers

What is responsible for cannabinoid-induced memory impairment?

<p>Hippocampal CB1 receptors (C)</p> Signup and view all the answers

Which neurotransmitter is a full agonist at both CB1 and CB2 receptors?

<p>2-AG (B)</p> Signup and view all the answers

What is the impact of endocannabinoids on anxiety responses?

<p>They are important mediators of anxiety responses (B)</p> Signup and view all the answers

Which cannabinoid acts as a negative allosteric modulator of CB1 receptors?

<p>CBD (B)</p> Signup and view all the answers

What is the effect of THC on regional brain activation based on brain imaging?

<p>Promotes regional brain activation and enhanced local blood flow (B)</p> Signup and view all the answers

Which cognitive functions can be affected by marijuana use according to the text?

<p>Learning, memory, attention, and decision making (A)</p> Signup and view all the answers

What cognitive process is impaired both acutely and chronically by cannabinoid exposure?

<p>Verbal learning and memory (B)</p> Signup and view all the answers

Which cognitive process shows possibly persistent effects according to the text?

<p>Verbal learning and memory (B)</p> Signup and view all the answers

In chronic cannabinoid exposure, what cognitive process may be impaired depending on the frequency of use and age of onset?

<p>Attention (C)</p> Signup and view all the answers

Which cognitive process is likely to show persistent effects on attention and psychomotor function with abstinence?

<p>Psychomotor function (D)</p> Signup and view all the answers

What effect of cannabinoid exposure is task- and dose-dependent according to the text?

<p>Impaired attention (C)</p> Signup and view all the answers

Which cognitive process shows possibly impaired executive function as a chronic effect of cannabinoid exposure?

<p>Impaired inhibitory control (B)</p> Signup and view all the answers

What potentially dangerous cardiovascular effects can be seen when α1 blockade is coupled with NE reuptake-blocking?

<p>Tachycardia and arrhythmias (A)</p> Signup and view all the answers

Which side effect is specifically associated with Selective Serotonin Reuptake Inhibitors (SSRIs)?

<p>Nausea and headache (C)</p> Signup and view all the answers

What life-threatening condition can occur when SSRIs are combined with other serotonergic agonists or drugs?

<p>Serotonin syndrome (A)</p> Signup and view all the answers

What is the primary advantage of Dual NE/5-HT modulators (SNRIs) over SSRIs according to the text?

<p>Enhancing both NE and 5-HT function (D)</p> Signup and view all the answers

How does Mirtazapine reduce side effects according to the text?

<p>It blocks only selected 5-HT receptors (B)</p> Signup and view all the answers

What effect does blocking α2-autoreceptors have on serotonergic cells?

<p>Increases 5-HT release (A)</p> Signup and view all the answers

What is the best predictor of a good therapeutic response to psychedelic drugs?

<p>Intensity of the psychedelic experience (A)</p> Signup and view all the answers

How do PCP and ketamine act as antagonists at the NMDA receptor?

<p>They bind to a site within the receptor's channel (A)</p> Signup and view all the answers

What effect does the NMDA receptor blockade by PCP and ketamine have on cortical GABAergic interneurons?

<p>Increases cortical glutamate release (A)</p> Signup and view all the answers

What is a common symptom induced by high doses of PCP and ketamine, resembling schizophrenia?

<p>Disordered thought and motor disturbances (B)</p> Signup and view all the answers

What is hypothesized as a key factor in the glutamate hypothesis of schizophrenia?

<p>Underactivity of the glutamatergic system (A)</p> Signup and view all the answers

What effect did researchers find in human volunteers without prior exposure to ketamine?

<p>Dose-independent increase in drug liking (D)</p> Signup and view all the answers

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