Not just one beat, but two: lub-dub, lub-dub, over and over. In a way, those dual sounds help illustrate the reality that the heart is in fact a double pump that sustains a constant double ...

Double circulation in humans refers to the complete separation of oxygenated and deoxygenated blood during its journey through the heart and blood vessels. This system involves two distinct circuits: ...

Description A description of the purpose and function of a human heart including an explanation of double circulation and why heart attacks occur.

Double circulatory system Humans have a double circulatory system, which means the blood passes through the heart twice on each loop around the body.

New findings suggest that the aorta actively assists the heart by generating a wave-pumping effect, providing crucial support for blood circulation, particularly in individuals with heart failure.