sinoatrial node development
The process whose specific outcome is the progression of the sinoatrial (SA) node over time, from its formation to the mature structure. The SA node is part of the cardiac conduction system that controls the timing of heart muscle contraction. It relays electrical signals to the AV node.
GO:0003228
atrial cardiac muscle tissue development
is_a
GO:0003161
cardiac conduction system development
part_of
SA node development
exact
SAN development
exact
sinus node development
narrow