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Body Fluids and Circulation

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Animal Kingdom
Structural Organisation in Animals
Digestion and Absorption
Breathing and Exchange of Gases
Body Fluids and Circulation
Excretory Products and their Elimination
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Neural Control and Coordination
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Human Reproduction
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  1. 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
    1. Atrioventricular bundle
    2. Purkinje system
    3. Sinuatrial node
    4. Atrioventricular node
Correct Option: C

SA node is the natural pacemaker located in the right atrium. SA node initiates the cardiac impulse. So, artificial pacemaker will be grafted at the site of SA node.


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