Patients experiencing hypertension (high blood pressure) may be prescribed drugs called beta-blockers. These drugs bind to receptors on cardiac muscle cells and block the action of the sympathetic neurotransmitter on the heart. This prevents the effect that the sympathetic innervation would normally have on the heart. Consequently, both heart rate and the force of contraction are .
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Identify the type of beta-blocker. Ten beta-blockers are available, each with a different mode of action. Show more…
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