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:	Z disc
Synonyms:	Z band, Z disk, Z line
Definition:	Platelike region of a muscle sarcomere to which the plus ends of actin filaments are attached.
Ontology:	GO: Cellular Component [GO:0030018] QuickGO AmiGO