9
Question
The cardiac impulse is initiated and conducted further upto ventricle. The correct sequence of conduction of impulse is
The cardiac impulse is initiated and conducted further upto ventricle. The correct sequence of conduction of impulse is
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Solution
The correct option is A SA node; AV node; AV bundle; Purkinje fibre
Correct answer: (c) SA node; AV node; AV bundle; Purkinje fibre
∙ The sinoatrial node (SAN) is present near the opening of the superior vena cava and the AV node is found near the interauricular septum near the tricuspid valve.
∙ Bundle of HIS is a bundle of muscle fibres that begins from atrio-ventricular node and extends to the interventricular septum.
∙ The bundle of HIS consists of branches of fibres running along the wall of the ventricle known as Purkinje fibres.
∙ All these together form a system which creates an impulse and conducts it to every part of the heart.
Correct answer: (c) SA node; AV node; AV bundle; Purkinje fibre
∙ The sinoatrial node (SAN) is present near the opening of the superior vena cava and the AV node is found near the interauricular septum near the tricuspid valve.
∙ Bundle of HIS is a bundle of muscle fibres that begins from atrio-ventricular node and extends to the interventricular septum.
∙ The bundle of HIS consists of branches of fibres running along the wall of the ventricle known as Purkinje fibres.
∙ All these together form a system which creates an impulse and conducts it to every part of the heart.
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