Each 2.54 square centimetre (a square inch) of human skin has six metres (20ft) of blood vessels. Veins hold about 65 per cent of the body's blood and have one-way valves tohelp blood move.

If we could join all the blood vessels in a human body together end-to-end, they would wrap around the world twice! The heart is a powerful muscle that pumps approximately 9,092 litres of blood ...

All values must be entered in order to calculate percentiles for Blood Pressure and Height. A percentile shows the relative position of the child's measurement (such as Blood Pressure or Height) among ...

Kawasaki disease affects 18 to 25 per 100,000 children under 5 years old in the United States. It typically begins with a fever and vasculitis, a type of blood vessel inflammation, and may involve ...