Answer :
Answer:
True
Explanation:
The sinoatrial node is a small body of specialized muscle tissue in the wall of the right atrium of the heart that acts as a pacemaker by producing a contractile signal at regular intervals.
Answer:
True
Explanation:
The sinoatrial node is a small body of specialized muscle tissue in the wall of the right atrium of the heart that acts as a pacemaker by producing a contractile signal at regular intervals.