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).

Famous quotes containing the word heart:

“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)

“Apparel vice like virtue’s harbinger;
Bear a fair presence, though your heart be tainted;
Teach sin the carriage of a holy saint;
Be secret-false.”
—William Shakespeare (1564–1616)

“And wilt thou leave me thus?
That hath loved thee so long
In wealth and woe among:
And is thy heart so strong
As for to leave me thus?
Say nay! say nay!”
—Sir Thomas Wyatt (1503?–1542)