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:

    “Long, long, afterward, in an oak
    I found the arrow, still unbroke;
    And the song, from beginning to end,
    I found again in the heart of a friend.”
    —Henry Wadsworth Longfellow (1809–1882)

    “A great mind is a good sailor, as a great heart is.”
    —Ralph Waldo Emerson (1803–1882)

    “My heart pumps yet the poison draught of you.”
    —William Empson (1906–1984)