Pharmacology of the Central Nervous System Quiz
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Questions and Answers

Which receptor subtype is responsible for vasoconstriction in blood vessels?

  • 5-HT2 (correct)
  • 5-HT4
  • 5-HT3
  • 5-HT2B
  • Which serotonin receptor subtype leads to vasodilation through the release of vasorelaxant mediators from the vascular endothelium?

  • 5-HT2
  • 5-HT4
  • 5-HT3
  • 5-HT2B (correct)
  • What is the primary function of 5-HT4 receptors in the gastrointestinal (GI) system?

  • Vasoconstriction
  • Anti-emesis
  • Vasodilation
  • GI motility regulation (correct)
  • Which type of medication targets 5-HT3 receptors for antiemetic (anti-vomiting) effects induced by cytotoxic drugs?

    <p>Antagonists of 5-HT3</p> Signup and view all the answers

    Which amino acid serves as the precursor for the synthesis of serotonin?

    <p>Tryptophan</p> Signup and view all the answers

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