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 ...

Your heart’s job is to keep your pulse steady to pump blood throughout your body. Sometimes your heart rate is slower when you’re relaxing, and sometimes it’s faster when you’re exercising or stressed ...

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 ...

First, the sinoatrial, or SA, node sets your “resting” heart rate, usually somewhere between 60 and 100 beats per minute. This is the base effort needed to circulate enough blood to sustain ...

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.

The sinoatrial node, although small in size, plays a crucial role in maintaining heart rhythm. Scientists have discovered that this vital structure operates under sex-specific genetic instructions.