Biology · Artificial Pacemaker
What is the medical consequence if a patient's natural Sinoatrial (SA) node becomes severely defective or non-functional?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The blood stops clotting permanently throughout the circulatory system.
- 2The normal generation of rhythmic cardiac impulses is disrupted, leading to an irregular or dangerously low heart rate.✓
- 3The flow of blood inside the coronary vessels gets completely reversed.
- 4The heart instantly switches to regular mechanical ventilation.
Correct answer
The normal generation of rhythmic cardiac impulses is disrupted, leading to an irregular or dangerously low heart rate.
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