sinoatrial node उदाहरण वाक्य

उदाहरण वाक्य

1. Cells in the sinoatrial node, located in the right atrium of the heart, spontaneously depolarize approximately 100 times per minute.
2. Contractions in striated muscles are voluntary, except for the heart muscle, in which contractions are regulated involuntarily by the sinoatrial node.
3. Unusually, this tachycardia is mediated by increased sympathetic activity to the sinoatrial node ( SAN ) with no fall in parasympathetic activity.
4. Being myogenic, the heart's pace is maintained by pacemaker cells found in the sinoatrial node, located on the right atrium.
5. Normally, the pacemaker cells of the sinoatrial node discharge at the highest frequency and are thus dominant over other cells with pacemaker activity.
6. Wenckebach is credited for describing the median bundle of the heart's conductive system that connects the sinoatrial node to the atrioventricular node.
7. While heart rhythm is regulated entirely by the sinoatrial node under normal conditions, heart rate is regulated by parasympathetic input to the sinoatrial node.
8. While heart rhythm is regulated entirely by the sinoatrial node under normal conditions, heart rate is regulated by parasympathetic input to the sinoatrial node.
9. Every pacemaker cell is able to stimulate an electric impulse in the same manner as the sinoatrial node, and share analogous cardiac action potentials.
10. The sinoatrial node is richly innervated by the autonomic nervous system, which up or down regulates the spontaneous firing frequency of the pacemaker cells.