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A build-up of fluid in the lungs will result in a reduced amount of oxygen in the blood returning to the heart from the lungs because
- a)the bronchioles have dilated
- b)there is less haemoglobin in the blood
- c)the surface area for external respiration has been reduced
- d)the permeability of the lung capillaries has been increased
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
A build-up of fluid in the lungs will result in a reduced amount of ox...
Pleural effusion or fluid build up in lungs will decrease the
surface area and thereby decrease oxygen uptake. option c is correct.
surface area and thereby decrease oxygen uptake. option c is correct.
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A build-up of fluid in the lungs will result in a reduced amount of ox...
Reduced amount of oxygen in the blood due to fluid build-up in the lungs
There are several reasons why a build-up of fluid in the lungs can result in a reduced amount of oxygen in the blood returning to the heart. Let's discuss them in detail:
Reduced surface area for external respiration
- When fluid accumulates in the lungs, it takes up space in the alveoli where gas exchange occurs.
- This reduces the surface area available for oxygen to diffuse from the air sacs into the bloodstream during external respiration.
- As a result, less oxygen is able to enter the blood, leading to a decrease in oxygen saturation levels.
Impact on oxygen diffusion
- The presence of fluid in the lungs can also create a barrier that hinders the diffusion of oxygen across the alveolar membrane.
- Oxygen molecules have a harder time crossing the fluid-filled alveoli to reach the bloodstream, further contributing to the reduced oxygen levels in the blood.
Altered gas exchange process
- The accumulation of fluid in the lungs can disrupt the normal gas exchange process, making it less efficient.
- This disruption can impede the transfer of oxygen from the alveoli to the capillaries, leading to a decreased oxygen supply to the blood.
In conclusion, the reduced amount of oxygen in the blood returning to the heart when there is a build-up of fluid in the lungs is primarily due to the decreased surface area for external respiration. This impedes the efficient exchange of oxygen and ultimately results in lower oxygen levels in the bloodstream.
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A build-up of fluid in the lungs will result in a reduced amount of oxygen in the blood returning to the heart from the lungs becausea)the bronchioles have dilatedb)there is less haemoglobin in the bloodc)the surface area for external respiration has been reducedd)the permeability of the lung capillaries has been increasedCorrect answer is option 'C'. Can you explain this answer?
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A build-up of fluid in the lungs will result in a reduced amount of oxygen in the blood returning to the heart from the lungs becausea)the bronchioles have dilatedb)there is less haemoglobin in the bloodc)the surface area for external respiration has been reducedd)the permeability of the lung capillaries has been increasedCorrect answer is option 'C'. 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 A build-up of fluid in the lungs will result in a reduced amount of oxygen in the blood returning to the heart from the lungs becausea)the bronchioles have dilatedb)there is less haemoglobin in the bloodc)the surface area for external respiration has been reducedd)the permeability of the lung capillaries has been increasedCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A build-up of fluid in the lungs will result in a reduced amount of oxygen in the blood returning to the heart from the lungs becausea)the bronchioles have dilatedb)there is less haemoglobin in the bloodc)the surface area for external respiration has been reducedd)the permeability of the lung capillaries has been increasedCorrect answer is option 'C'. Can you explain this answer?.
A build-up of fluid in the lungs will result in a reduced amount of oxygen in the blood returning to the heart from the lungs becausea)the bronchioles have dilatedb)there is less haemoglobin in the bloodc)the surface area for external respiration has been reducedd)the permeability of the lung capillaries has been increasedCorrect answer is option 'C'. 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 A build-up of fluid in the lungs will result in a reduced amount of oxygen in the blood returning to the heart from the lungs becausea)the bronchioles have dilatedb)there is less haemoglobin in the bloodc)the surface area for external respiration has been reducedd)the permeability of the lung capillaries has been increasedCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A build-up of fluid in the lungs will result in a reduced amount of oxygen in the blood returning to the heart from the lungs becausea)the bronchioles have dilatedb)there is less haemoglobin in the bloodc)the surface area for external respiration has been reducedd)the permeability of the lung capillaries has been increasedCorrect answer is option 'C'. Can you explain this answer?.
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