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Question
In the diagrammatic presentation of heart given below, mark and label, SAN, AVN, AV bundles, bundle of His and Purkinje fibres.

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Solution
The diagrammatic presentation of the heart with labelled SAN, AVN, AV bundles bundle of His and Purkinje fibres in the heart is shown as follows:

Diagram depicting purking fibre and bundle of His, SAN AVN and AV bundles in the heart.
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