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 ...

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.

The research question addressed whether TYHX could positively influence SAN ion channel function, specifically targeting the sodium-calcium exchanger (INCX) and L-type calcium channel (ICaL) of the ...

Sinoatrial node cells were isolated as previously described (Mangoni and Nargeot, 2001). Briefly, SAN tissue strips were immersed into a “low-Ca 2+ ” Tyrode’s solution containing 140 mM NaCl, 5.4 mM ...