Name:	pectoral fin
Synonyms:	forefin, pectoral fins
Definition:	Paired fin that is located in the thoracic region of the body.
Ontology:	Anatomy Ontology [ZFA:0001161]

Name:	myofibril
Synonyms:
Definition:	The contractile element of skeletal and cardiac muscle; a long, highly organized bundle of actin, myosin, and other proteins that contracts by a sliding filament mechanism.
Ontology:	GO: Cellular Component [GO:0030016] QuickGO AmiGO