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Biology 17 Online
OpenStudy (anonymous):

Where are the cells that make up the sinoatrial node, or pacemaker, located? a. right atrium c. right ventricle b. left atrium d. left ventricle

iYuko (iyuko):

Sinoatrial node is located at the junction of the superior vena cava with the right atrium. It is the normal cardiac pacemaker. -Google

OpenStudy (anonymous):

Right atrium

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