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:

    Lovers, the conclusion is
    Doubled sighs and jealousies
    In a single heart that grieves
    For lost honour among thieves.
    Robert Graves (1895–1985)

    A more secret, sweet, and overpowering beauty appears to man when his heart and mind open to the sentiment of virtue. Then he is instructed in what is set above him. He learns that his being is without bound; that to the good, to the perfect, he is born, low as he now lies in evil and weakness.
    Ralph Waldo Emerson (1803–1882)

    They borrow words for thoughts they cannot feel,
    That with a seeming heart their tongue may speak;
    And in their show of life more dead they live
    Than those that to the earth with many tears they give.
    Jones Very (1831–1880)