The cardiac impulse is initiated and conducted further up to ventricle. The correct sequence of conduction of impulse is

(a) SA Node

AV Node

Purkinje fiber

A V Bundle

(b) SA Node

Purkinje fiber

AV Node

A V Bundle

(c) SA Node

AV Node

AV Bundle

Purkinje fiber

(d) SA Node

Purkinje fiber

AV Bundle

AV Node

Answers (1)

The answer is the option (c)

SA Node

AV Node

AV Bundle

Purkinje fiber

 

Explanation: The contraction starts in the SA Node; the wave of contraction reaches the AV Node then via the AV Bundle the impulse of contraction is spread, and finally, the Purkinje Fiber stimulates the heartbeat.

 

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