HeartDefinition (http://en.wikipedia.org/wiki/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). (Wikipedia) Preferred Units: N/A Scope Note: N/A This term is used for the following terms: N/A Approved Date 26-Mar-2013 Click here to give feedback on this term or suggest an update. |