Red Blood Cell Cars
When you’re a tiny, single-celled organism like a Germ, the body of a 10-year-old boy is a very big place indeed. But getting around is easy, if you know how: you simply drive a Red Blood Cell Car! Suddenly arteries and veins become super-fast highways and there’s lots of fun to be had, driving up and down, visiting all the many interesting places – and being chased by Antibodies!
Red Blood Cell Cars have little haemoglobin engines that use oxygen for fuel. As the oxygen fuel runs out the whole car begins to slowly change colour, from red to blue, so it doesn’t need a fuel gauge to tell you how full its tank is! Then you simply drive it back to the lungs for a re-fill, and you’re all set for another journey!
Full fuel tank – off we go!
Fuel tank only half full!
Fuel tank empty – back to the lungs to fill it up again!
OK, so what are red blood cells?
It’s red blood cells that give our blood its distinctive red colour. There are more of them than any other type of cell in the body – over 5million per cubic mm in men, and slightly less in women. They are round and flat, with a shallow bowl on both top and bottom sides. Their job is to carry oxygen to all parts of the body, which they do using a protein called haemoglobin.
The Protozoan Cruiser
As master of the single-celled universe, the Protozoans have their own special means of transport: the Protiac Cruiser. Large, menacing and very mean-looking – like them – the Protozoan’s Cruiser is the perfect vehicle to frighten anything that stands in their way. It’s big too, and can hold four of these brutes and their guns. With ‘Evil Eye’™ headlamps and a sinister dark, dark green paint job, this is one car to steer well clear of!
Infectious Entertainment!
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