Long before human bone marrow takes over the task of producing blood, discrete waves of blood cell production occur in the developing embryo. Miriana Dardano, a postdoctoral researcher in Zweigerdt’s ...

It’s the hardest working muscle in your body. Your heart is what operates your circulatory system. Find out how your heart pumps blood and keeps you alive. Major Funding by the Laura Moore Cunningham ...

The human circulatory system shares several fundamental principles with closed-loop fluid transport systems commonly used in industrial applications. In both cases, a pump generates the driving force ...

Your heart’s job is to keep your pulse steady to pump blood throughout your body. Sometimes your heart rate is slower when you’re relaxing, and sometimes it’s faster when you’re exercising or stressed ...

Health issues in other organ systems, like the kidneys or metabolic system — which includes how the body manages weight and ...