There are quite a few cells and nodes in your heart’s conduction system, and each has its own cardiac conduction system function, including: Sinoatrial node: As mentioned before, the sinoatrial ...

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 ...

Abnormally slow heart rates result from breakdowns in two principal areas of the heart. First, the sinoatrial, or SA, node sets your “resting” heart rate, usually somewhere between 60 and 100 beats ...

<b><i>UPDATED WITH </i></b>INTERVIEW // A new study has shown that fish and omega-3 fatty-acid consumption are associated with "more optimal" values of various HRV indices, thus shedding some ...

Third-degree sinoatrial exit block occurs when no SA nodal action potentials are able to leave the SA node. No P waves are seen on the ECG. When a junctional escape ensues, the rhythm may be ...

Did you know that certain medications can cause symptom of 'Sinoatrial node dysfunction'. Find these drugs listed on the page and be warned of similar symptoms as possible side-effects.

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.

Since hypoxia inhibits conduction &amp; automaticity predominantly in tissues dependent on the slow (Ca-channel) current, sinus node (SN) function should be selectively depressed. The effects of ...