Final answer:
Beta-blockers, like metoprolol and propranolol, slow down the heart rate and reduce the force of contraction, which can improve heart function post-myocardial infarction. Anticholinergics block acetylcholine receptors but are less commonly associated with treating heart attacks.
Step-by-step explanation:
Beta Adrenergic Blocking Agents in Treating Myocardial Infarction
Beta adrenergic blocking agents, commonly known as beta-blockers, are a class of drugs used to manage cardiovascular diseases by blocking beta receptors which can lead to vasoconstriction and increased heart rate. These drugs, including common forms like metoprolol and propranolol, are effective in improving cardiac function for patients with a history of congestive heart failure or myocardial infarction (heart attack). They work by slowing down the heart rate, reducing the force of heart muscle contraction, and decreasing oxygen demand.
Anticholinergics, such as atropine, work by blocking the muscarinic acetylcholine receptors, and although they are not primarily used for treating myocardial infarctions, they can manage symptoms related to excess acetylcholine which may have applications in cardiac care.