SA Node as Heart's Pacemaker — NEET Biology
📚 Practice Concept📖 NCERT Source
Sino-atrial node is called the pacemaker of our heart. Why?
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QuestionPractice Question
Assertion (A): The sino-atrial node is the natural pacemaker of the heart. Reason (R): The sino-atrial node is located in the left upper corner of the left atrium.
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