daisyibuoka daisyibuoka

25-05-2020
Biology

contestada

What is the proper name for the electrical system in the heart?

Respuesta :

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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