Human circulatory system · ALFRED PASIEKA/SCIENCE PHOTO LIBRARY
Exercise and cardiac health, artwork · ANIMATED HEALTHCARE LTD/SCIENCE PHOTO LIBRARY
Heart pattern, artwork · MEHAU KULYK/SCIENCE PHOTO LIBRARY
Cardiology, conceptual image · SCIENCE PHOTO LIBRARY
Coronary Blood Supply, artwork · SCIENCE PICTURE CO/SCIENCE PHOTO LIBRARY
Heart within the Chest, artwork · SCIENCE PICTURE CO/SCIENCE PHOTO LIBRARY
Robotic hand holding heart, illustration · KTSDESIGN/SCIENCE PHOTO LIBRARY
Red metal heart, illustration · KTSDESIGN/SCIENCE PHOTO LIBRARY
Medical check up , artwork · ANDRZEJ WOJCICKI/SCIENCE PHOTO LIBRARY
Stethoscope forming a heartbeat shape, illustration · FANATIC STUDIO / SCIENCE PHOTO LIBRARY
Heart · ALFRED PASIEKA/SCIENCE PHOTO LIBRARY
Cardiovascular system, artwork · SCIEPRO/SCIENCE PHOTO LIBRARY
Cardiology symbol, artwork · GUSTOIMAGES/IIT BOMBAY/SCIENCE PHOTO LIBRARY
Planet Earth in the shape of a heart · ANDRZEJ WOJCICKI/SCIENCE PHOTO LIBRARY
Anatomy of an athlete, illustration · SEBASTIAN KAULITZKI/SCIENCE PHOTO LIBRARY
Heart · RUSSELL KIGHTLEY/SCIENCE PHOTO LIBRARY
Electrocardiograph with an alert sign · JOHAN SWANEPOEL / SCIENCE PHOTO LIBRARY
Human heart, illustration · K H FUNG/SCIENCE PHOTO LIBRARY
Sprinter, artwork · SMETEK/SCIENCE PHOTO LIBRARY
Heart · SCIENCE PHOTO LIBRARY
Illustration of doctors joining heart · FANATIC STUDIO / SCIENCE PHOTO LIBRARY
Mending a broken heart, conceptual image · IAN HOOTON/SCIENCE PHOTO LIBRARY
Heart with workers, heart repair · ALFRED PASIEKA/SCIENCE PHOTO LIBRARY
Male surgeon stitching heart, illustration · FANATIC STUDIO / SCIENCE PHOTO LIBRARY
Human heart · MEHAU KULYK/SCIENCE PHOTO LIBRARY
Healthcare, illustration · MACROVECTOR / SCIENCE PHOTO LIBRARY