subject | relation | object |
---|---|---|
sinoatrial node development | BFO:0000050 | cardiac conduction system development (GO:0003161) |
sinoatrial node development | is_a | atrial cardiac muscle tissue development (GO:0003228) |
subject | relation | object |
---|---|---|
sinoatrial node cell differentiation (GO:0060921) | BFO:0000050 | sinoatrial node development |