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:

    My one and noble heart has witnesses
    In all love’s countries, that will watch awake;
    And when blind sleep falls on the spying senses,
    The heart is sensual, though five eyes break.
    Dylan Thomas (1914–1953)

    I haven’t the heart to poke poor Billy.
    Harry Graham (1874–1936)

    Look into the world—how often do you behold a sordid wretch, whose straight heart is open to no man’s affliction, taking shelter behind an appearance of piety, and putting on the garb of religion, which none but the merciful and compassionate have a title to wear.
    Laurence Sterne (1713–1768)