sinoatrial node उदाहरण वाक्य

A wave of excitation spreads out from the sinoatrial node through the atria along specialized conduction channels.
Pacemaker potentials are fired by sinoatrial node ( SAN ), but also by the other foci.
Acetylcholine hyperpolarizes the sinoatrial node, which is overcome by MRA and thus increases the heart rate.
From head to tail, these are the atrium, the sinoatrial node and the coronary sinus.
Pacemaker cells develop in the primitive atrium and the sinus venosus to form the sinoatrial node and the atrioventricular node respectively.

This condition, called tachycardia-bradycardia syndrome, is usually caused by sinoatrial node dysfunction or block or atrioventricular block.
The heart has a sort of central controller called the sinoatrial node, which serves as pacemaker for the whole system.
The normal rhythmical heart beat, called sinus rhythm, is established by the sinoatrial node, the heart's pacemaker.
The sinoatrial node is found in the upper part of the right atrium near to the junction with the superior vena cava.
The electrical signal generated by the sinoatrial node travels through the right atrium in a radial way that is not completely understood.