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Solution


Q.

Following are the stages of pathway for conduction of an action potential through the heart.

A. AV bundle
B. Purkinje fibres
C. AV node
D. Bundle branches
E. SA node

Choose the correct sequence of pathways from the options given below.                               [2024]
1 E - C - A - D - B  
2 A - E - C - B - D  
3 B - D - E - C - A  
4 E - A - D - B - C  

Ans.

(1)