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Body Fluids and Circulation

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Advanced Zoology

Animal Kingdom
Structural Organisation in Animals
Digestion and Absorption
Breathing and Exchange of Gases
Body Fluids and Circulation
Excretory Products and their Elimination
Locomotion and Movement
Neural Control and Coordination
Chemical Coordination and Integration
Human Reproduction
Human Health and Disease
Biotechnology Principles and Processes
Biomolecules (Zoology)
Evolution (Zoology)
Biotechnology and its Applications
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  1. The correct route through which pulsemaking impulse travels in the heart is
    1. AV node → bundle of His → SA node Purkinje fibres → heart muscles
    2. AV node → SA node → Purkinje fibres → bundle of His → heart muscles
    3. SA node → Purkinje fibre→bundle of His → AV node → heart muscles
    4. SA node → AV node → bundle of His→Purkinje fibre → heart muscles
Correct Option: D

The pulse making impulse travels in the heart in the order of SA node→AV node→bundle of His→Purkinje fibres→heart muscles.


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