The heart… that little organ of the size of a fist. Symbol of love, life, compassion and all the other human emotions, one thing is for sure – no one could live without a heart :D
From Wikipedia, the free encyclopedia:
The heart is a pear shaped, muscular organ in vertebrates, responsible for pumping blood through the blood vessels by repeated, rhythmic contractions, or a similar structure in annelids, mollusks, and arthropods[1] The term cardiac (as in cardiology) means "related to the heart" and comes from the Greek καρδία, kardia, for "heart." The heart is composed of cardiac muscle, an involuntary