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Primary Task Response: Within the Discussion Board area, write 400–600 words that respond to the following questions with your thoughts, ideas, and comments. This will be the foundation for future discussions by your classmates. Be substantive and clear, and use examples to reinforce your ideas.You have been asked to explain the cardiovascular system to the patients of a cardiac rehab clinic. Address the following, with at least 1 scholarly reference and citation included:Describe the path of blood through the heart, starting at the right atrium.What is the function of the heart?Explain the process of heart disease. What is happening to the coronary arteries?What is happening during a myocardial infarction (MI)?What are some of the causes and risk factors for heart disease?How can someone reduce the risk of heart disease?