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Where does cardiac impulses orginate?...

Where does cardiac impulses orginate?

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**Step-by-Step Solution:** 1. **Understanding Cardiac Impulses**: Cardiac impulses are electrical signals that stimulate the heart to contract and pump blood. These impulses are crucial for maintaining a regular heartbeat. 2. **Identifying the Source**: The primary source of these cardiac impulses is the Sinoatrial (SA) node. This is a specialized group of cells located in the heart. 3. **Location of the SA Node**: The SA node is situated in the wall of the right atrium of the heart. This positioning allows it to effectively control the contraction of the atria. ...
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