Body Fluids and Circulation Question 79
79. The correct route through which pulse-making impulse travels in the heart is
[1995]
(a) AV node $\to$ bundle of His $\to SA$ node Purkinje fibres $\to$ heart muscles
(b) AV node $\to$ SA node $\to$ Purkinje fibres $\to$ bundle of His $\to$ heart muscles
(c) SA node $\to$ Purkinje fibre $\to$ bundle of His $\to$ AV node $\to$ heart muscles
(d) SA node $\to AV$ node $\to$ bundle of His $\to$ Purkinje fibre $\to$ heart muscles
Show Answer
Answer : d
Hints & Solutions
(d) The pulse making impulse travels in the heart in the order of SA node $\to AV$ node $\to$ bundle of His $\to$ Purkinje fibres $\to$ heart muscles.
