asked 38.7k views
1 vote
The location of the heart's pacemaker is a specialized region of cardiac muscle called the

asked
User Kit Ho
by
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2 Answers

2 votes
sinoatrial node aka the SA node 
answered
User Mbmc
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8.3k points
7 votes
sinotrial node or the SA node


please add answer choices to your other questions in order to get your questions answered faster.

answered
User Ahmad Hammoud
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8.7k points
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