如何测定交感迷走张力平衡？

Sympathovagal balance: how should we measure it?

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抗胆碱药作用于气道平滑肌上的特定毒蕈碱受体，以抑制迷走张力。

Anticholinergics act by blocking muscarinic receptors in the smooth muscle of the airways and inhibiting vagal tone.

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实验结果提示：高腺苷含量及高迷走神经张力均可以起窦性心率减慢及房室传导阻滞。

We conclude that both high myocardial adenosine level and high vagal tone may result in sinus bradycardia and A-V block.

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