Biology, asked by naveenkanna, 7 months ago

initiation and conduction of heat beat​

Answers

Answered by ɪᴛᴢPÍɴᴋPèåʀʟ
12

Answer:

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. This forces blood into the ventricles. The SA node sets the rate and rhythm of your heartbeat.

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