The sinoatrial is a node (or SA node) specialized tissue located in the right atrium of the heart, that generates the electrical impulse to initiate the heartbeat.
In a normal, healthy heart, the SA node is the heart's pacemaker.
The sinoatrial is a node (or SA node) specialized tissue located in the right atrium of the heart, that generates the electrical impulse to initiate the heartbeat.
In a normal, healthy heart, the SA node is the heart's pacemaker.