Podcast
Questions and Answers
Monoamine oxidase (MAO) inhibitors block the breakdown of ______ by the enzyme MAO.
Monoamine oxidase (MAO) inhibitors block the breakdown of ______ by the enzyme MAO.
norepinephrine
Selective serotonin reuptake inhibitors (SSRIs) block the removal of ______ from receptor sites.
Selective serotonin reuptake inhibitors (SSRIs) block the removal of ______ from receptor sites.
serotonin
Curare is a competitive ______ of acetylcholine.
Curare is a competitive ______ of acetylcholine.
antagonist
Curare prevents muscle stimulation, causing ______.
Curare prevents muscle stimulation, causing ______.
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Certain drugs are classified as noncompetitive ______ because they prevent reactions at receptor sites.
Certain drugs are classified as noncompetitive ______ because they prevent reactions at receptor sites.
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Study Notes
Drugs influence receptor sites in various ways. Monoamine oxidase (MAO) inhibitors prevent norepinephrine breakdown, extending its effects and potentially relieving depression, but can raise heart rate and blood pressure. Selective serotonin reuptake inhibitors (SSRIs) also prolong serotonin action. Some drugs, like Curare, act as competitive antagonists by occupying receptor sites, causing paralysis by blocking acetylcholine. Noncompetitive antagonists inhibit reactions at one site, affecting overall cellular activity. Many drug mechanisms remain unclear, with receptor-site interactions widely considered.
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Description
This quiz explores the role of various drugs in relation to receptor sites within the body. It covers the mechanisms of action for MAO inhibitors and SSRIs, their therapeutic benefits, and potential adverse effects. Additionally, it discusses antagonists like curare and their impact on receptor function.
