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:

    Nothing is so insufferable to man as to be completely at rest, without passions, without business, without diversion, without study. He then feels his nothingness, his forlornness, his insufficiency, his dependence, his weakness, his emptiness. There will immediately rise from the depth of his heart weariness, gloom, sadness, fretfulness, vexation, despair.
    Blaise Pascal (1623–1662)

    blue bead on the wick,
    there’s that in me that
    burns and chills, blackening
    my heart with its soot,
    I think sometimes not Apollo heard me
    but a different god.
    Denise Levertov (b. 1923)

    Rejoice, O young man, in thy youth; and let thy heart cheer thee in the days of thy youth, and walk in the ways of thine heart, and in the sight of thine eyes: but know thou, that for all these things God will bring thee into judgment.
    Bible: Hebrew Ecclesiastes, 11:9.