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 heart laments that virtue cannot live
    Out of the teeth of emulation.”
    —William Shakespeare (1564–1616)

    “Blows the wind to-day, and the sun and the rain are flying,
    Blows the wind on the moors to-day and now,
    Where about the graves of the martyrs the whaups are crying,
    My heart remembers how!”
    —Robert Louis Stevenson (1850–1894)

    “O, popular applause! what heart of man
    Is proof against thy sweet, seducing charms?”
    —William Cowper (1731–1800)