The cardiovascular system is made up of your heart and your blood vessels. This heart anatomy diagram shows that blood flows from the right atrium into the right ventricle and out to the lungs ...

The long road to understanding how the heart works began almost 400 years ago, when the English physician William Harvey discovered that an organ long revered as the center of human being was ...

Your heart beats about 100,000 times in one day and about 35 million times in a year. During an average lifetime, the human heart will beat more than 2.5 billion times. Give a tennis ball a good ...

Human heart anatomy from a healthy body isolated on white background as a medical health care symbol of an inner cardiovascular organ in a 3D illustration style. Getty Images/iStockphoto In terms ...

Scientists have found a way to use spinach to build working human heart muscle, potentially solving a long-standing problem in efforts to repair damaged organs. Their study, published this month ...