| 1. | Both atria are thinwalled muscular chambers .
两心房是由薄壁构成的空腔。 |
| 2. | Atrial fibrillation is much more common than atrial flutter .
心房纤颤比心房扑动更为常见。 |
| 3. | The heart of ione stood still at that strange mirth .
这奇怪的欢乐几乎使伊俄涅的心房停止了跳动。 |
| 4. | The vagus nerves have an inhibitory action on atrial pacemakers .
迷走神经对心房起搏点有抑制作用。 |
| 5. | Flattening of the right atrial border is also seen in constrictive pericarditis .
右心房缘变平亦见于缩窄性心包炎。 |
| 6. | Estimation of right atrial size on plain radiography is fraught with difficulties .
在平片上很难估计右心房的大小。 |
| 7. | A poignant anxiety thrust itself sharply into presley's heart .
一阵剧烈的焦虑，象把刀子似的，直扎进普瑞斯莱的心房。 |
| 8. | From the left atrium the blood passes through the bicuspid valve into the left ventricle .
来自左心房的血液通过二尖瓣进入右心室。 |
| 9. | The sinoatrial node is located at the junction of the superior vena cava and the right atrium .
窦房结位于上腔静脉与右心房的交界处。 |
| 10. | Carotid sinus pressure has little or no effect on the atrial rate in atrial flutter .
压迫颈动脉窦对心房扑动时的心房率几乎不起作用。 |
