Tag: arteries
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Danse of the virus
S.E.S. Medina Benbrook, Texas, United States HIV infecting a lymphocyte. © iStockphoto It is born with tens of thousands of identical brothers and sisters when the thin-walled, transparent, fatty bubble of their nurturing womb suddenly bursts—releasing them into the tumultuary rapids of the host’s bloodstream. It possesses no sense of self, no manner of…
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William Harvey
Philip R. LiebsonChicago, Illinois, United States The impression that William Harvey (1578-1657) discovered the closed circulation of the blood is not entirely accurate, although after Harvey there was never any doubt about it. Regardless of what credit you ascribe to him, it is clear that his research benefited from more than two thousand years of…