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:

    “The heart of another is a dark forest, always, no matter how close it has been to one’s own.”
    —Willa Cather (1873–1947)

    “The words of kindness are more healing to a drooping heart than balm or honey.”
    —Sarah Fielding (1710–1768)

    “It is night,
    And it is vanity, and age
    Blackens the heart of Adam. Fear,
    The yellow chirper, beaks its cage.”
    —Robert Lowell (1917–1977)