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:
“Spring is here.
Why doesn’t my heart go dancing?”
—Lorenz Hart (1895–1943)
“No one knows,
the heart of a child,
how it grows
until it is too late.”
—Hilda Doolittle (1886–1961)
“If with love thy heart has burned;
If thy love is unreturned;
Hide thy grief within thy breast,
Though it tear thee unexpressed.”
—Ralph Waldo Emerson (1803–1882)
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