Today we'll study the action of the heart.

今天我们将研究心脏的活动。

youdao

Alcohol stimulates the action of the heart.

就刺激心脏的活动。

youdao

Some medicines depress the action of the heart.

有些药物会减弱心脏的功能。

youdao

Now, in the heart action potential is moving from one heart muscle cell to another over the surface of the heart.

心脏中的动作电位,沿相邻心肌细胞在心脏表面传递

耶鲁公开课 - 生物医学工程探索课程节选

When we measure EKG's, what we're measuring is the activity of all these cells within our heart performing action potentials.

当我们做心电图的时候,我们所测量的是心脏内能发出,动作电位的细胞的活动状态

耶鲁公开课 - 生物医学工程探索课程节选

In the heart it turns out that the cells of the heart are electrically coupled together, so if an action potential moves down this cell it directly moves into the next cell.

在心脏中,事实证明,心脏细胞是电偶联的,所以如果动作电位在一个细胞中传递,那么直接就能传递给下个细胞

耶鲁公开课 - 生物医学工程探索课程节选

The flags are already out across the United Kingdom and CNN will be at the heart of action as the country gears up for a long weekend of revelry from June 2-5.

CNN: What's on during Diamond Jubilee weekend

The home side momentarily worked their way back into the game, with Berbatov again at the heart of the action.

BBC: Tottenham 1-1 Middlesbrough

Robben, a constant menace all night, was the man at the heart of the action, racing towards goal as Barcelona began to back off.

CNN: Brilliant Bayern batters Barcelona