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:

    a sorrow’s crown of sorrow is remembering happier things.
    Drug thy memories, lest thou learn it, lest thy heart be put to proof,
    In the dead unhappy night, and when the rain is on the roof.
    Alfred Tennyson (1809–1892)

    The taking of a little prize,
    Do not a single heart dispise.
    Aurelian Townshend (c. 1583–c.1651)

    One enemy, of many, who knows well
    Your heart is luminous
    In the watched dark, quivering through locks and caves,
    Will pull the thunderbolts
    To shut the sun, plunge, mount your darkened keys....
    Dylan Thomas (1914–1953)