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As humans, we have receptors for two kinds of beta adrenergic compounds such as catecholamines. cardiac muscle cells have beta 1 receptors that promote increased heart rate. some drugs that slow heart rate are called beta blockers. smooth muscle cells, however, have beta 2 receptors which mediate muscle relaxation. blockers of these effects are sometimes used to treat asthma. the use of beta 2 antagonist drugs may be useful in asthma because:
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As humans, we have receptors for two kinds of beta adrenergic compounds such as catecholamines. card...
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