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A doctor detects an irregularity in the first part of the heartbeat.
Where would the abnormality occur that would cause this
irregularity?
• Valve between the left atrium and left ventricle
• Valve between the left atrium and the body
• Valve between the left ventricle and left atrium
• Valve between the left atrium and left ventrical.
Explanation:
The first part of the heartbeat occurs through the sound of the mitral and tricuspid valves closing. These valves are located between the right upper heart chamber (right atrium) and right lower heart chamber (right ventricle).
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