What part of the heart helps all muscle cells beat in unison? (it's located in the right atrium)
Answer: pacemaker (SA node)
What part of the heart helps all muscle cells beat in unison? (it's located in the right atrium)
Answer: pacemaker (SA node)
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Human Biology
What part of the heart helps all muscle cells beat in unison? (it's located in the right atrium)
Answer: pacemaker (SA node)
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