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Questions and Answers
Which receptor subtype is responsible for vasoconstriction in blood vessels?
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?
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?
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?
Which type of medication targets 5-HT3 receptors for antiemetic (anti-vomiting) effects induced by cytotoxic drugs?
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Which amino acid serves as the precursor for the synthesis of serotonin?
Which amino acid serves as the precursor for the synthesis of serotonin?
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