PHYSIOLOGY
CARDIOVASCULAR PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Electrical initiation of the heartbeat begins in this chamber of the heart.
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Right Atrium
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Left Atrium
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Right Ventricle
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Left Ventricle
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Explanation:
Detailed explanation-1: -An electrical stimulus is generated by the sinus node (also called the sinoatrial node, or SA node). This is a small mass of specialized tissue located in the right upper chamber (atria) of the heart. The sinus node generates an electrical stimulus regularly, 60 to 100 times per minute under normal conditions.
Detailed explanation-2: -What is the cardiac conduction system? The human heart is an engine that has to work 24/7 to keep you alive, and it has to be reliable and effective. To do this, it relies on a specialized network of cells called the cardiac conduction system. It’s also known as your heart’s electrical system.
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