MCQ
Sequence of electrical impulse in heart beat is
- A$AV$node $\rightarrow$ pacemaker $\rightarrow$ auricles $\rightarrow$ ventricles
- BVentricle $\rightarrow$ pacemaker $\rightarrow$ $AV$ node $\rightarrow$ auricle
- ✓Pacemaker $\rightarrow$ atria $\rightarrow$ $AV$ node $\rightarrow$ ventricle
- DPacemaker $\rightarrow$ $AV$ node $\rightarrow$ atria $\rightarrow$ ventricle