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:

    ““How goes it?” Heart replied,
    “Right as a Ribstone Pippin!””
    —Hilaire Belloc (1870–1953)

    “We that are bound by vows and by promotion,
    With pomp of holy sacrifice and rites,
    To teach belief in good and still devotion,
    To preach of heaven’s wonders and delights—
    Yet, when each of us in his own heart looks,
    He finds the God there far unlike his books.”
    —Fulke Greville (1554–1628)

    “All loss, all pain, is particular; the universe remains to the heart unhurt.”
    —Ralph Waldo Emerson (1803–1882)