When a person takes part in exercise their face can become pink due to vasodilation of the blood vessels close to the skin's surface. When the heart contracts it pushes blood into blood vessels which ...

Your circulatory system works all day, every day, to pump oxygen throughout your body. There are cardiovascular conditions that can impact this system. Your circulatory system, also known as your ...

transport and deliver oxygen, nutrients and hormones to the body remove waste products such as carbon dioxide and lactic acid protection against disease and infection maintain body temperature When a ...

You remember how Dorothy, Toto, and the rest of the gang were trying to make their way to see the Wizard of Oz? That’s kind of how veins work in relation to your heart. Your heart is the wizard, and ...