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Why is the Sa Node Called the Pacemaker of the Heart? - Biology

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प्रश्न

Why is the SA node called the pacemaker of the heart?

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उत्तर

The SA node is called the pace-maker of the heart because the wave of contraction which conducts heart beat originates in it.

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अध्याय 6: The Circulatory System - Give Reasons

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आईसीएसई Biology [English] Class 10
अध्याय 6 The Circulatory System
Give Reasons | Q 4

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