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What is SA Node? Why is …

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What is SA Node? Why is it called pacemaker of heart?

Posted by Aryan Vishwakarma 6 years, 9 months ago

CBSE > Class 10 > Science

1 answers

Mayank Bhunia 6 years, 9 months ago

SN nodes(sinoricullar) is present in the auricles.this node consists of special cells capable of generating electric impulse for contraction of diff. Parts of heart. Pace makrr is an artificial device which is used if contraction of heart is not proprr

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