First, the sinoatrial, or SA, node sets your “resting” heart rate, usually somewhere between 60 and 100 beats per minute.

Cardiomyocytes derived from human stem cells act as a biological pacemaker in the rat heart. The sinoatrial node (SAN) is the primary pacemaker of the heart and controls heart rate throughout life.

The sinoatrial (SA) node is the natural pacemaker of the heart. It generates electrical impulses that cause the heart’s chambers to contract, setting the heart rate. The SA node typically ...

Sinoatrial node: As mentioned before, the sinoatrial node is your heart’s natural pacemaker. How fast or slow your sinoatrial node sends your heart the signal to contract depends on your ...

Having an accelerated junctional rhythm occurs when the atrioventricular node in your heart beats too quickly. It happens as a result of damage to your heart’s primary natural pacemaker. There ...

In addition to 'Sinoatrial node dysfunction', there may be other similar symptoms or signs that better match your side effect. These have also been listed below for your convenience.

Sinus tachycardia is when the sinus node in the heart sends electrical impulses faster than the normal rate. Learn more about causes and treatments here.

The sinoatrial node, or SAN, is a small group of cells in the right atrium of the heart. It sets the pace for heart contraction, spreading electrical signals through the rest of the muscle.

Pacemaker cells in the sinoatrial node control heart rate, but what controls the ticking of these pacemaker cells? New research reveals, for the first time, a critical functional interaction ...

The pacemaker (“funny”) current (I f) of sinoatrial-node myocytes determines the slope of the diastolic depolarization of pacemaker cells and thus has a key role in the generation and ...

The atrioventricular, or AV, node is the second key area of the heart’s electrical wiring. The atrioventricular node takes information about how fast the heart is beating from the sinoatrial node and ...