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:
“My heart leaps up when I behold
A rainbow in the sky:”
—William Wordsworth (1770–1850)
“I have a heart to love all the world; and like Alexander I wish there were yet other worlds, so I could carry even further my amorous conquests.”
—Molière [Jean Baptiste Poquelin] (1622–1673)
“Every man takes care that his neighbor shall not cheat him. But a day comes when he begins to care that he does not cheat his neighbor. Then all goes well. He has changed his marketcare into a chariot of the sun. What a day dawns, when we have taken to heart the doctrine of faith!”
—Ralph Waldo Emerson (1803–1882)