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.

For nine months, you were enveloped in the warm, comfortable world of your mother's womb. Your every need was taken care of. The placenta supplied you with oxygen from your mother's blood, so your ...

This short film is from the BBC series, Biological processes of the human body. You could recreate the blood cycle / circulation by using red balloons and blue balloons to represent oxygenated and ...

There was no need for circulation. Basic Books ... called the “wine-dark sea”) and inferred that a similar to-and-fro motion of blood operated within the human body. Modern medicine would be ...

Compression socks can prevent blood clots or blood pooling. Increased circulation helps ease body aches and pain. Fewer Varicose Veins. Pregnancy increases your chance of developing varicose veins.