Dictionary » C » Chronotropic



(Science: pharmacology) Affecting the time or rate, as the rate of contraction of the heart.

Origin: gr. Tropikos = turning

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Heart beat control

If the SA Node is not working, then the AV node kicks in (or node with the next highest chronotropic rate). basically...the node which beats fastest, wins. No sympathetic nervous system??? I imagine there would not be a heart beat that's compatible with life.

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by cardiorrhexis
Wed Mar 08, 2006 2:39 am
Forum: Physiology
Topic: Heart beat control
Replies: 9
Views: 19696

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