The cardiac pacemaker in a patient fails...

The cardiac pacemaker in a patient fails to function normally. The doctors find that an artificial pacemaker is to be grafted in him. It is likely that it will be grafted at the site of
(a) atrioventricular bundle
(b) purkinje system
(c) sinu-atrial node
(d) atrio-ventricular node

Purkinje system

Sinuatrial node

Atrioventricular node

Atroventricular bundle

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The cardiac pacemaker in a patient fails to function normally. The doctors find that an artificial pacemaker is to be grafted in him. It is likely that it will be grafted at the site of(a) atrioventricular bundle (b) purkinje system (c) sinu-atrial node (d) atrio-ventricular node