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).
Read more about Heart.
Famous quotes containing the word heart:
“Fasten your hair with a golden pin,
And bind up every wandering tress;
I bade my heart build these poor rhymes:
It worked at them, day out, day in,
Building a sorrowful loveliness
Out of the battles of old times.”
—William Butler Yeats (1865–1939)
“But the heart refuses to be imprisoned; in its first and narrowest pulses it already tends outward with a vast force and to immense and innumerable expansions.”
—Ralph Waldo Emerson (1803–1882)
“O world, thou wast the forest to this hart,
And this indeed, O world, the heart of thee!
How like a deer, strucken by many princes,
Dost thou here lie!”
—William Shakespeare (1564–1616)