Term Name:	bulbus arteriosus
Synonyms:	truncus
Definition:	The bulbus arteriosus is an elastic heart chamber[GO]. Multi-tissue structure that consists of three layers and through which the blood exits the heart. The bulbus arteriosus is a pear shaped chamber that functions as a capacitor, maintaining continuous blood flow into the gill arches[ZFA].
Ontology:	Uberon Ontology [UBERON:0004152]