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:
“In every tyrant’s heart there springs in the end
This poison, that he cannot trust a friend.”
—Aeschylus (525–456 BC)
“If grief could burn out
Like a sunken coal,
The heart would rest quiet....”
—Philip Larkin (1922–1986)
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