Receptor, Serotonin, 5-HT2A

**Definition:** A serotonin receptor subtype found widely distributed in peripheral tissues where it mediates the contractile responses of variety of tissues that contain SMOOTH MUSCLE. Selective 5-HT2A receptor antagonists include KETANSERIN. The 5-HT2A subtype is also located in BASAL GANGLIA and CEREBRAL CORTEX of the BRAIN where it mediates the effects of HALLUCINOGENS such as LSD.

**Tree numbers:** - D12.776.543.750.670.800.200.100 - D12.776.543.750.695.800.200.100 - D12.776.543.750.720.850.200.100

**Synonyms:** - 5-HT(2A) Receptor - 5-HT2A Receptor - Receptor, Serotonin 2A - Serotonin 2A Receptors - Serotonin 2A Receptor