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).

Read more about Heart.

Famous quotes containing the word heart:

    “The heart is blind; but love is not blind. None of the gods is so discriminating.”
    —Henry David Thoreau (1817–1862)

    “swerving
    perfectly,
    the fierce, brilliant faith
    that pierces the heart all summer
    and sips bitter insects steeped in nectar ...”
    —Denise Levertov (b. 1923)

    “My heart is warm with the friends I make,
    And better friends I’ll not be knowing,
    Yet there isn’t a train I wouldn’t take,
    No matter where it’s going.”
    —Edna St. Vincent Millay (1892–1950)