The heart is the hardest working muscle in the human body. Here, you will learn more about the anatomy of the heart, and how the heart works.

You will also learn about the different congenital heart defects that may cause serious health problems and require the clinical care of a physician or other health professional.

• Anatomy of the Heart Valves
  
  
• Function of the Heart Valves
  
  
• Function of the Heart's Electrical System
  
  
• Function of the Coronary Arteries