daisyibuoka daisyibuoka
  • 25-05-2020
  • Biology
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What is the proper name for the electrical system in the heart?

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santhijoby
santhijoby santhijoby
  • 11-10-2020

Answer:

SA node

Explanation:

The SA node (called the pacemaker of the heart) sends out an electrical impulse. The upper heart chambers (atria) contract. The AV node sends an impulse into the ventricles. The lower heart chambers (ventricles) contract or pump.

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