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The circulatory system — Biology STD 10 — Question

ICSE BoardEnglish MediumSTD 10BiologyThe circulatory system1 Mark
Question
Explain the Term :
Pacemaker.
✓

Answer

Pacemaker : A small device implanted in the chest to help control abnormal heart rhythms. In a biological context, it refers to the sinoatrial node of the heart that naturally sets the pace of heartbeats.

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