• Question: what is the heart?

    Asked by january to Daniel on 14 Nov 2011.
    • Photo: Daniel Scully

      Daniel Scully answered on 14 Nov 2011:

      A blood pump.

      Your arteries and veins are basically a transportation system for moving around nutrients, oxygen, hormones, dead cells etc. The heart pumps the blood around this system so it gets to the whole body.

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