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:

““It was the mask engaged your mind,
And after set your heart to beat,
Not what’s behind.””
—William Butler Yeats (1865–1939)

“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)

“I saw a staring virgin stand
Where holy Dionysus died,
And tear the heart out of his side,
And lay the heart upon her hand
And bear that beating heart away;”
—William Butler Yeats (1865–1939)