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The heart keeps the rest of the body working, but what makes the heart work?

Question #151039. Asked by Chavs.
Last updated May 03 2024.
Originally posted May 02 2024 8:49 PM.

odo5435
Answer has 4 votes
Currently Best Answer
odo5435
13 year member
153 replies

Answer has 4 votes.

Currently voted the best answer.
The heart is electrically stimulated by a natural pacemaker known as the sinonatrial (or sinus, or S-A) node. The function of this node is to regularly (normally 60 to 100 times a minute) activate the atria which then pumps blood into the vascular system.

link https://www.britannica.com/science/heart
Response last updated by odo5435 on May 03 2024.
May 03 2024, 7:38 AM
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