Objective: To evaluate the use of flat-panel digital cardiacsystem in the peripheral vascular and non-vascular intervention.
目的：评价平板式全数字心血管造影机在周围血管及非血管介入中的应用价值。
2
A: Adrenaline from the nervous system lands on receptors of cardiac myocytes (heart-muscle cells), and this causes calcium channels in the membranes of those cells to open.
答：来自神经系统的肾上腺激素“着陆”到心脏肌细胞的受体，这使得这些肌细胞的膜中的钙通道打开。
3
There are many other causes of sudden cardiac death in young people. They usually affect the structure of the heart or the heart's electrical system.