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Name the area of origin of heartbeat in ...

Name the area of origin of heartbeat in human.

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**Step-by-Step Solution:** 1. **Understanding the Heart's Structure**: The human heart consists of four chambers: two atria (upper chambers) and two ventricles (lower chambers). 2. **Role of Electrical Impulses**: The heartbeat is initiated by electrical impulses that are generated within the heart itself. These impulses are crucial for the contraction and relaxation of the heart muscles, allowing it to pump blood effectively. 3. **Identifying the Pacemaker**: The area where the heartbeat originates is known as the SA node (sinoatrial node). This node is often referred to as the heart's natural pacemaker because it sets the rhythm and rate of the heartbeat. ...
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