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.

The systemic circuit transports blood around the rest of the body. It transports oxygen and nutrients from the heart to the body tissues and carries away deoxygenated blood containing carbon ...

Blood flow is a vital aspect of our total health. It delivers oxygen and nutrients throughout our bodies, which is critical to us maintaining vitality and fitness. Regrettably, a variety of ...

Hypertension, or chronically high blood pressure, is a double whammy for the brain — making it harder for oxygen and ...

The seals’ ability to detect the amount of oxygen in their blood may help them make diving decisions and avoid drowning.

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