Stan Larkin actually did, but stuffed inside wasn’t a slew of textbooks — it was his heart. Twenty-five-year-old Larkin lived for 555 days without a human heart in his chest. Instead ...

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 ...

including the human heart. Click on the body at left to learn more about these decidedly 21st-century technologies. Note: Whenever we discuss a specific product rather than a general type of ...