Term Name:	circulatory organ
Synonyms:	cardiac pump, cardiac structure, circulatory vessel, heart, heart or heart like organ
Definition:	A hollow, muscular organ, which, by contracting rhythmically, contributes to the circulation of lymph, blood or analogs. Examples: a chambered vertebrate heart; the tubular peristaltic heart of ascidians; the dorsal vessel of an insect; the lymoh heart of a reptile.
Ontology:	Cell Ontology [UBERON:0015228]