Of all of the human organs, the heart is in some sense the simplest. All it has to do is pump blood by contracting and expanding about 2.5 billion times during the lifetime of its owner. The heart is also one of the most studied organs of the body, probably because heart failure , either mechanical or electrical, remains the leading cause of death in the Western world.

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The Heart

  • James Keener,
  • James Sneyd

摘要

Of all of the human organs, the heart is in some sense the simplest. All it has to do is pump blood by contracting and expanding about 2.5 billion times during the lifetime of its owner. The heart is also one of the most studied organs of the body, probably because heart failure , either mechanical or electrical, remains the leading cause of death in the Western world.