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27-10-2021
Health

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a control center at the back of the right atrium which controls the heartbeat

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katietbh katietbh

27-10-2021

Answer: the SA node

Explanation: The impulse starts in a small bundle of specialized cells located in the right atrium, called the SA node. The electrical activity spreads through the walls of the atria and causes them to contract. ... The SA node sets the rate and rhythm of your heartbeat.

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