Blood is a red liquid that travels to all parts of your body. It works like a highway, carrying cells around the body.
It’s made up of red blood cells, white blood cells and platelets, which float in a liquid called plasma. Blood is important for a lot of reasons. It moves oxygen, nutrients and water around your body, and it helps you to fight infections. It also picks up the body’s waste products and carries them to the lungs and kidneys, where they are released from the body.
Blood is carried around in veins and arteries. These are tiny tubes that run throughout your body and are also called blood vessels. Not everyone has the same type of blood.
Did you know?
There are four main types of blood and each person will have a different type of blood in their body. These are called: A, B, AB and O.
