2 MCQs in Physiology for NEET PG
A 28-year-old medical student reviews a standard 12-lead ECG during a physiology practical. The ECG shows normal sinus rhythm with a PR interval of 0.16 seconds. Which of the following best explains the electrical event occurring during the PR interval?
A 38-year-old man undergoes a 12-lead ECG during a routine health examination. The ECG shows a normal PR interval of 0.16 seconds. Which of the following best explains the physiological basis of the PR interval duration?
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