Home Biology Body Fluids and Circulation The cardiac impulse is initiated and conduct…
Biology Body Fluids and Circulation Single Correct MCQ
Published on: August 21, 2026

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

A
SA node→ AV node → Purkinje fibre → AV bundle
B
SA node→ Purkinje fibre → AV node → AV bundle
C
SA node→ AV node → AV bundle → Purkinje fibre
D
SA node→ Purkinje fibre → AV bundle → AV node

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The correct answer is:

                    

Human heart is myogenic heart. It has a specialized tissue for initiation and conduction of the cardiac impulses. The cardiac impulse begins at the Sinoatrial node or SA node also called pace maker of the heart. From the SA node the impulse passes to the AV node and then Bundle of His or AV bundle and finally reaches Purkinje fibres. so the correct order is SA node, AV node, AV bundle, Purkinje fibres.

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