Heart

Heart

The heart is a hollow muscle that pumps blood throughout the blood vessels by repeated, rhythmic contractions. It is found in all animals with a circulatory system (including all vertebrates).

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Famous quotes containing the word heart:

    “he had been alone
    Amid the heart of many thousand mists,”
    —William Wordsworth (1770–1850)

    “The heart has its reasons of which reason knows nothing: we know this in countless ways.”
    —Blaise Pascal (1623–1662)

    “All pathways by His feet are worn,
    His strong heart stirs the ever-beating sea;
    His crown of thorns is twined with every thorn;
    His cross is every tree.”
    —Joseph Mary Plunkett (1887–1916)