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Questions and Answers
What is the normal range of the PR interval in a normal sinus rhythm of the heart?
What is the normal range of the PR interval in a normal sinus rhythm of the heart?
- 0.35 s - 0.45 s (correct)
- 0.2 s - 0.3 s
- 0.05 s - 0.1 s
- 0.5 s - 0.6 s
What is the function of the Atrioventricular Node (AV) in the electrical conduction system of the heart?
What is the function of the Atrioventricular Node (AV) in the electrical conduction system of the heart?
- To generate action potential through depolarization and repolarization processes
- To delay the electrical discharge as it spreads through the atrial muscle fibers (correct)
- To clarify the electrical conduction system of the heart in Fig. (2
- To rapidly pass the electrical discharge within the conduction tissue called His Bundle
Which of the following is true about the QRS complex in a normal sinus rhythm of the heart?
Which of the following is true about the QRS complex in a normal sinus rhythm of the heart?
- Its normal amplitude is in the range of 1 mV - 2 mV
- It indicates to ventricle depolarization (correct)
- Its width is less than 0.1 s
- It denotes to the repolarization of the ventricle
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