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Blood and blood vessels
Blood carries oxygen and nutrients to the cells of our body and helps us fight infection. Veins, arteries and capillaries are blood vessels that combine with the heart to make up the circulatory system.
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Topic: Introduction to blood and blood vessels
Circulatory system
The heart, blood and blood vessels work together to service the cells of the body.
Blood count
The full blood count (FBC) test looks for abnormalities in the blood, such as unusually high or low numbers of blood cells.
Blood groups
A person's blood group is determined by a pair of genes, one each inherited from their mother and father.
