What is blood

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http://youtube.com/watch?v=Wse7VzDk6jk

A heart isn’t much good without lots and lots of blood! • But what actually is blood? Let’s find out… • Plasma: This is the sloshy part of your blood. An adult human has the same amount of liquid in their blood as three big bottles of cola! • Plasma is actually pale yellow in colour, it only looks red because of the red blood cells. • Red blood cells: If you look at red blood cells under a microscope, they look like squashed footballs! • low-red-blood-cellThese funny looking cells are packed with nutrients and oxygen. • The part of the cells that carries oxygen is called haemoglobin. • The more oxygen it has – the redder it is! That’s why the blood coming from your lungs is brighter than the blood going in. • Find out more about the heart at: http://www.funkidslive.com/learn/hall... • Subscribe for more videos like this! • Fun Kids is the UK's children's radio station. Tune in on DAB Digital Radio across the UK, on mobile and online at http://www.funkidslive.com • Professor Hallux’s Heart Beat is funded thanks to a Heart Research UK Health Heart Grant.

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