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Which is the correct route through which pulse making impulse travels in the heart?
- a)SA node → AV node → Bundle of His → Purkinje fibres → heart muscles
- b)AV node → Bundle of His → SA node → Purkinje fibres → heart muscles
- c)AV node → SA node → Purkinje fibres → Bundle of His → heart muscles
- d)SA node → Purkinje fibres → Bundle of His → AV node → heart muscles
Correct answer is option 'A'. Can you explain this answer?
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Which is the correct route through which pulse making impulse travels...
Impulse for contraction starts in the SA node. From there it travels to the AV node. It is then conducted to the Purkinje fibres through the Bundle of His fibres. The Purkinje fibre situated in the lateral walls of the ventricles spread the impulse to the ventricles. Thus the ventricular contraction is initiated. The pressure exerted by the blood pushed into the aortic arteries is recorded as pulse.
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Which is the correct route through which pulse making impulse travels...
The Correct Route of Pulse Making Impulse in the Heart
The correct route through which pulse making impulse travels in the heart is:
SA node → AV node → Bundle of His → Purkinje fibres → heart muscles
Explanation:
- SA node: The pacemaker of the heart is the sinoatrial (SA) node, which is located in the right atrium near the opening of the superior vena cava. It generates electrical impulses that spread across the atria, causing them to contract. This is the first step in the cardiac cycle.
- AV node: The electrical impulses then reach the atrioventricular (AV) node, which is located near the center of the heart, in the atrial septum. The AV node slows down the impulses to allow the atria to contract fully before the ventricles are stimulated. This is to ensure that the blood is moved efficiently out of the heart.
- Bundle of His: The impulses then travel down the Bundle of His, which is a group of specialized muscle fibers that conduct the impulses from the AV node to the ventricles. The Bundle of His branches out into the left and right bundle branches, which then spread out into the Purkinje fibers.
- Purkinje fibers: The Purkinje fibers are specialized muscle fibers that rapidly conduct the impulses throughout the ventricles, causing them to contract in unison. This is the final step in the cardiac cycle.
- Heart muscles: The contraction of the ventricles pumps blood out of the heart and into the circulatory system, providing the body with oxygen and nutrients.
Conclusion:
The correct route of pulse making impulse in the heart is SA node → AV node → Bundle of His → Purkinje fibers → heart muscles. This sequence ensures that the heart contracts efficiently and effectively, pumping blood throughout the body.
The correct route through which pulse making impulse travels in the heart is:
SA node → AV node → Bundle of His → Purkinje fibres → heart muscles
Explanation:
- SA node: The pacemaker of the heart is the sinoatrial (SA) node, which is located in the right atrium near the opening of the superior vena cava. It generates electrical impulses that spread across the atria, causing them to contract. This is the first step in the cardiac cycle.
- AV node: The electrical impulses then reach the atrioventricular (AV) node, which is located near the center of the heart, in the atrial septum. The AV node slows down the impulses to allow the atria to contract fully before the ventricles are stimulated. This is to ensure that the blood is moved efficiently out of the heart.
- Bundle of His: The impulses then travel down the Bundle of His, which is a group of specialized muscle fibers that conduct the impulses from the AV node to the ventricles. The Bundle of His branches out into the left and right bundle branches, which then spread out into the Purkinje fibers.
- Purkinje fibers: The Purkinje fibers are specialized muscle fibers that rapidly conduct the impulses throughout the ventricles, causing them to contract in unison. This is the final step in the cardiac cycle.
- Heart muscles: The contraction of the ventricles pumps blood out of the heart and into the circulatory system, providing the body with oxygen and nutrients.
Conclusion:
The correct route of pulse making impulse in the heart is SA node → AV node → Bundle of His → Purkinje fibers → heart muscles. This sequence ensures that the heart contracts efficiently and effectively, pumping blood throughout the body.
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Which is the correct route through which pulse making impulse travels in the heart?a)SA node → AV node → Bundle of His → Purkinje fibres → heart musclesb)AV node → Bundle of His → SA node → Purkinje fibres → heart musclesc)AV node → SA node → Purkinje fibres → Bundle of His → heart musclesd)SA node → Purkinje fibres → Bundle of His → AV node → heart musclesCorrect answer is option 'A'. Can you explain this answer?
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Which is the correct route through which pulse making impulse travels in the heart?a)SA node → AV node → Bundle of His → Purkinje fibres → heart musclesb)AV node → Bundle of His → SA node → Purkinje fibres → heart musclesc)AV node → SA node → Purkinje fibres → Bundle of His → heart musclesd)SA node → Purkinje fibres → Bundle of His → AV node → heart musclesCorrect answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which is the correct route through which pulse making impulse travels in the heart?a)SA node → AV node → Bundle of His → Purkinje fibres → heart musclesb)AV node → Bundle of His → SA node → Purkinje fibres → heart musclesc)AV node → SA node → Purkinje fibres → Bundle of His → heart musclesd)SA node → Purkinje fibres → Bundle of His → AV node → heart musclesCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which is the correct route through which pulse making impulse travels in the heart?a)SA node → AV node → Bundle of His → Purkinje fibres → heart musclesb)AV node → Bundle of His → SA node → Purkinje fibres → heart musclesc)AV node → SA node → Purkinje fibres → Bundle of His → heart musclesd)SA node → Purkinje fibres → Bundle of His → AV node → heart musclesCorrect answer is option 'A'. Can you explain this answer?.
Which is the correct route through which pulse making impulse travels in the heart?a)SA node → AV node → Bundle of His → Purkinje fibres → heart musclesb)AV node → Bundle of His → SA node → Purkinje fibres → heart musclesc)AV node → SA node → Purkinje fibres → Bundle of His → heart musclesd)SA node → Purkinje fibres → Bundle of His → AV node → heart musclesCorrect answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which is the correct route through which pulse making impulse travels in the heart?a)SA node → AV node → Bundle of His → Purkinje fibres → heart musclesb)AV node → Bundle of His → SA node → Purkinje fibres → heart musclesc)AV node → SA node → Purkinje fibres → Bundle of His → heart musclesd)SA node → Purkinje fibres → Bundle of His → AV node → heart musclesCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which is the correct route through which pulse making impulse travels in the heart?a)SA node → AV node → Bundle of His → Purkinje fibres → heart musclesb)AV node → Bundle of His → SA node → Purkinje fibres → heart musclesc)AV node → SA node → Purkinje fibres → Bundle of His → heart musclesd)SA node → Purkinje fibres → Bundle of His → AV node → heart musclesCorrect answer is option 'A'. Can you explain this answer?.
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