It pump blood . Duh . Well , for most of history , people were uncertain what the eye ’s main social function was . Even Leonardo Da Vinci gave up studying it and he ’s plausibly one of the five smart guys ever . Even now , it ’s not as easy as it should be to ascertain out how the heart work . Do n’t occupy , this Ted - Ed animationwill explain it to you perfectly . Basically , if you watch this , you ’ll be smart than Da Vinci .
HealthHeartLeonardo da VinciOrgans
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