The circulatory system consists of one heart, five liters of blood, and approximately 96,000 kilometers of blood vessels, responsible for transporting nutrients and waste throughout the body. Water ...

The chambers of the heart operate as a ‘double-pump’ system for the body’s circulation. In coordination with valves, the chambers work to keep blood flowing in the proper sequence. The chambers on the ...

The aorta, a large blood vessel responsible for transporting oxygenated blood from the heart to the rest of the body, plays a crucial role in our circulatory system. While it has long been known that ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Excerpted from The Wine-Dark Sea Within: A Turbulent History of ...

The technique restarts circulation after an organ donor is declared dead. But first surgeons cut off blood flow to the brain. One surgeon called it “creepy.” By Joseph Goldstein A new method for ...