Term Name: sinoatrial node
Synonyms:
Definition: Portion of tissue containing 3 and 30 cells in dorsal right quadrant of atrium that initiate heart beat.
Appears at: Larval:Protruding-mouth (72.0h-96.0h, 3.5mm)
Evident until: Adult (90d-730d, breeding adult)
Ontology: Anatomy Ontology [ZFA:0005069]

Relationships
develops from: sinoatrial ring
is part of: atrium cardiac conduction system
is a type of: portion of tissue

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