How Does the Heart Work? As the heart beats, it pumps blood through a system of blood vessels called the circulatory system. The vessels are elastic tubes that carry blood to every part of the body.

ECMO machines can do the work of the heart and lungs, and dialysis can filter the blood of people with kidney failure. There are arguably some parts of the human body that don't serve any useful ...

it was believed until recently that the structure and function of the heart across mammals was the same. But research from my colleagues and I reveals that the human heart is an outlier ...

These include major functional units like the brain and the heart, as well as much smaller body parts ... physiological functions. One of the largest organ systems in the human body, the skeleton ...