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:

    “I know I have the body of a weak and feeble woman, but I have the heart and stomach of a king, and of a king of England, too.”
    —Elizabeth I (1533–1603)

    “a sorrow’s crown of sorrow is remembering happier things.
    Drug thy memories, lest thou learn it, lest thy heart be put to proof,
    In the dead unhappy night, and when the rain is on the roof.”
    —Alfred Tennyson (1809–1892)

    “... the heart monitor,
    the death cricket bleeping.”
    —Anne Sexton (1928–1974)