Term: heart mitochondrion
Name: heart
Synonyms:
Definition: Blood pumping organ composed of four components: sinus venosus, atrium, cardiac ventricle and bulbus arteriosus.
Ontology: Anatomy Ontology [ZFA:0000114]

Name: mitochondrion
Synonyms: mitochondria
Definition: A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration.
Ontology: GO: Cellular Component [GO:0005739]    QuickGO    AmiGO