Biology, asked by Anonymous, 7 months ago

Explain SA Node and AV Node.......​

Answers

Answered by harunkumar411
2

Answer:

heyy.........

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.

hope it helps u cute ammu❤❤❤❤

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Answered by cskooo7
2

Explanation:

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