Questions
ANSC20001_2025_SM1 Week 5 & 6: Circulation (Example MCQs)
Single choice
The QRS complex represents
Options
A.Depolarisation of the ventricles
B.Depolarisation of the atria
C.The AV nodal delay
D.Repolarisation of the ventricles
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Step-by-Step Analysis
When interpreting the ECG, the QRS complex timing and morphology are tied to ventricular activation.
Option A: Depolarisation of the ventricles. This is the key feature of the QRS complex—the rapid spread of electrical activity that triggers v......Login to view full explanationLog in for full answers
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