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:

    “Farewell, my Youth! for now we needs must part,
    For here the paths divide;
    Here hand from hand must sever, heart from heart,—
    Divergence deep and wide.”
    —Rosamund Marriott Watson (1863–1911)

    “She saw the couches of the dead, and where the fibrous root
    Of every heart on earth infixes deep its restless twists:”
    —William Blake (1757–1827)

    “Swift beating on his breast in sibylline frenzy blind
    Because the heart in his blood-sodden breast had dragged him down into mankind ...”
    —William Butler Yeats (1865–1939)