Cardiovascular disease is the leading cause of morbidity, and preclinical investigations of animal models are critical for better understanding its mechanisms. Over the last several decades, ...

The familiar heart symbol doesn’t look much like a real human heart—and that mismatch is the whole mystery. If the shape is supposed to stand ...

a, Front view of the heart within a cardiac cycle. The heart is identified by a magenta circle at 4/11 T. BA, brachiocephalic artery; ITV, internal thoracic vessels; IV, intercostal vessels. b, ...

Your heart is a muscular organ that helps circulate your blood, which delivers oxygen and nutrients to your tissues. There are four chambers and four valves in your heart, and each ensures proper ...