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What is the primary pacemaker of the heart?
Practice Questions
Q1
What is the primary pacemaker of the heart?
Atrioventricular node
Bundle of His
Sinoatrial node
Purkinje fibers
Questions & Step-by-Step Solutions
What is the primary pacemaker of the heart?
Steps
Concepts
Step 1: Understand that the heart has a special part that controls its beating.
Step 2: This special part is called the sinoatrial (SA) node.
Step 3: The SA node is located in the right atrium of the heart.
Step 4: The SA node sends electrical signals that make the heart muscles contract.
Step 5: These signals start the heartbeat and keep it regular.
Step 6: Because it starts the heartbeat, the SA node is called the primary pacemaker of the heart.
No concepts available.
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