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Assertion: In the human heart, there is no mixing of oxygenated and deoxygenated blood.
Reason: Presence of valves in the heart allows the movement of blood in one direction only
Reason: Presence of valves in the heart allows the movement of blood in one direction only
- a)If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
- b)If both Assertion and Reason are true but Reason is not the correct explanation of Assertion
- c)If Assertion is true but Reason is false.
- d)If both Assertion and Reason are false.
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
Assertion: In the human heart, there is no mixing of oxygenated and de...
In the human heart, there is no mixing of deoxygenated and oxygenated blood due to the presence of inter - atrial and inter - ventricular septum. These septa completely divide the atria and ventricles into right and left and thus avoid mixing of blood. The presence of valves that prevents the backflow of the blood. The two atria are separated from the ventricles by membranous valves. The valve separating the right atrium from the right ventricle is known as the right atrioventricular valve or tricuspid valve (as it is made of three flaps or cusps). The valve separating the left atria and the left ventricle is called left atrioventricular valve or the bicuspid valve or the mitral valve (since it is made of two flaps). They allow the flow of blood from atria to ventricles and not in the backward direction. At the base of the aorta are present three membranous, pocket-shaped semilunar valves. These valves check the return of the blood to the ventricle.
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Assertion: In the human heart, there is no mixing of oxygenated and de...
Understanding the Assertion and Reason
The assertion states that in the human heart, there is no mixing of oxygenated and deoxygenated blood. This is fundamentally true due to the heart's structure and function.
Structure of the Heart
- The human heart consists of four chambers: two atria (upper chambers) and two ventricles (lower chambers).
- The right side of the heart receives deoxygenated blood from the body and pumps it to the lungs for oxygenation.
- The left side receives oxygenated blood from the lungs and pumps it to the body.
Role of Valves
- The heart contains four main valves: the tricuspid, pulmonary, mitral, and aortic valves.
- These valves ensure that blood flows in one direction, preventing backflow and mixing.
- However, the presence of valves alone does not directly explain why there is no mixing of oxygenated and deoxygenated blood.
Correct Explanation of the Assertion
- The separation of oxygenated and deoxygenated blood is primarily due to the anatomical structure of the heart, not just the presence of valves.
- Each side of the heart functions distinctly, maintaining the separation between the two types of blood throughout the cardiac cycle.
Conclusion
- Therefore, while both the assertion and reason are true, the reason provided does not correctly explain the assertion.
- Hence, the correct answer is option 'B': Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
The assertion states that in the human heart, there is no mixing of oxygenated and deoxygenated blood. This is fundamentally true due to the heart's structure and function.
Structure of the Heart
- The human heart consists of four chambers: two atria (upper chambers) and two ventricles (lower chambers).
- The right side of the heart receives deoxygenated blood from the body and pumps it to the lungs for oxygenation.
- The left side receives oxygenated blood from the lungs and pumps it to the body.
Role of Valves
- The heart contains four main valves: the tricuspid, pulmonary, mitral, and aortic valves.
- These valves ensure that blood flows in one direction, preventing backflow and mixing.
- However, the presence of valves alone does not directly explain why there is no mixing of oxygenated and deoxygenated blood.
Correct Explanation of the Assertion
- The separation of oxygenated and deoxygenated blood is primarily due to the anatomical structure of the heart, not just the presence of valves.
- Each side of the heart functions distinctly, maintaining the separation between the two types of blood throughout the cardiac cycle.
Conclusion
- Therefore, while both the assertion and reason are true, the reason provided does not correctly explain the assertion.
- Hence, the correct answer is option 'B': Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion.
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Assertion: In the human heart, there is no mixing of oxygenated and deoxygenated blood.Reason: Presence of valves in the heart allows the movement of blood in one direction onlya)If both Assertion and Reason are true and Reason is the correct explanation of Assertion.b)If both Assertion and Reason are true but Reason is not the correct explanation of Assertionc)If Assertion is true but Reason is false.d)If both Assertion and Reason are false.Correct answer is option 'B'. Can you explain this answer?
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Assertion: In the human heart, there is no mixing of oxygenated and deoxygenated blood.Reason: Presence of valves in the heart allows the movement of blood in one direction onlya)If both Assertion and Reason are true and Reason is the correct explanation of Assertion.b)If both Assertion and Reason are true but Reason is not the correct explanation of Assertionc)If Assertion is true but Reason is false.d)If both Assertion and Reason are false.Correct answer is option 'B'. 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 Assertion: In the human heart, there is no mixing of oxygenated and deoxygenated blood.Reason: Presence of valves in the heart allows the movement of blood in one direction onlya)If both Assertion and Reason are true and Reason is the correct explanation of Assertion.b)If both Assertion and Reason are true but Reason is not the correct explanation of Assertionc)If Assertion is true but Reason is false.d)If both Assertion and Reason are false.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Assertion: In the human heart, there is no mixing of oxygenated and deoxygenated blood.Reason: Presence of valves in the heart allows the movement of blood in one direction onlya)If both Assertion and Reason are true and Reason is the correct explanation of Assertion.b)If both Assertion and Reason are true but Reason is not the correct explanation of Assertionc)If Assertion is true but Reason is false.d)If both Assertion and Reason are false.Correct answer is option 'B'. Can you explain this answer?.
Assertion: In the human heart, there is no mixing of oxygenated and deoxygenated blood.Reason: Presence of valves in the heart allows the movement of blood in one direction onlya)If both Assertion and Reason are true and Reason is the correct explanation of Assertion.b)If both Assertion and Reason are true but Reason is not the correct explanation of Assertionc)If Assertion is true but Reason is false.d)If both Assertion and Reason are false.Correct answer is option 'B'. 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 Assertion: In the human heart, there is no mixing of oxygenated and deoxygenated blood.Reason: Presence of valves in the heart allows the movement of blood in one direction onlya)If both Assertion and Reason are true and Reason is the correct explanation of Assertion.b)If both Assertion and Reason are true but Reason is not the correct explanation of Assertionc)If Assertion is true but Reason is false.d)If both Assertion and Reason are false.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Assertion: In the human heart, there is no mixing of oxygenated and deoxygenated blood.Reason: Presence of valves in the heart allows the movement of blood in one direction onlya)If both Assertion and Reason are true and Reason is the correct explanation of Assertion.b)If both Assertion and Reason are true but Reason is not the correct explanation of Assertionc)If Assertion is true but Reason is false.d)If both Assertion and Reason are false.Correct answer is option 'B'. Can you explain this answer?.
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ample number of questions to practice Assertion: In the human heart, there is no mixing of oxygenated and deoxygenated blood.Reason: Presence of valves in the heart allows the movement of blood in one direction onlya)If both Assertion and Reason are true and Reason is the correct explanation of Assertion.b)If both Assertion and Reason are true but Reason is not the correct explanation of Assertionc)If Assertion is true but Reason is false.d)If both Assertion and Reason are false.Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice NEET tests.
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