5 Questions
Which part of the heart has the highest rate of spontaneous diastolic depolarization?
SA node
What is responsible for the automaticity property of each cardiac cell?
Spontaneous diastolic depolarization
In what direction does impulse propagation occur in the conducting system?
Anterograde (from atria to ventricles)
What happens if the SA node stops functioning?
Another heart cell will start heart activation at a higher rate than that of SA node
Pathological causes such as ischemia and electrolyte disturbance could lead to:
Increase in the excitability and rate of certain heart cells resulting in automatic arrhythmia
Test your knowledge on the specific criteria of the cardiac muscle related to cardiac arrhythmia. Explore concepts such as automaticity, excitability, conductivity, and contractility.
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