Q. The correct route through which pulse-making impulse travels in the heart is
A. SA node —> Purkinje fibres —> bundle of His —> AV node —> heart muscles
B. SA node —> AV node —> bundle of His —> Purkinje fibres —> heart muscles
C. AV node —> bundle of His —> SA node —> Purkinje fibres —> heart muscles
D. AV node —> SA node —> Purkinje fibres —> bundle of His —> heart muscles
Answer: SA node —> AV node —> bundle of His —> Purkinje fibres —> heart muscles
