Term Name:	atrium
Synonyms:
Definition:	Cavitated compound organ that receives inflow of deoxygenated blood and delivers it to a muscular cardiac ventricle. Valves are present to direct flow. There are only two chambers present in the fish heart.
Appears at:	Pharyngula:High-pec (42.0h-48.0h)
Evident until:	Adult (90d-730d, breeding adult)
Ontology:	Anatomy Ontology [ZFA:0000471]

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