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Heart Anatomy and Function

A high-level overview of cardiac anatomy, geared toward patients and with information about ways to improve heart health.

Your heart is the main organ of your cardiovascular system, a network of blood vessels that pumps blood throughout your body. It also works with other body systems to control your heart rate and blood pressure. Your family history, personal health history and lifestyle all affect how well your heart works.

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SOURCE: Cleveland Clinic • LAST UPDATED: January 26, 2024