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Which of the following would occur as a result of the oval opening in the heart remaining open after birth?
- a)Blood pressure in the lungs would increase
- b)Impulses from the sinoatrial (SA) node would stop
- c)Blood in the right atrium would mix with blood in the left atrium
- d)A greater amount of blood would flow into the pulmonary system
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
Which of the following would occur as a result of the oval opening in ...
Explanation:
The oval opening in the heart is a normal structure present in a fetus, which allows blood to bypass the lungs and flow from the right atrium to the left atrium. However, this opening should close shortly after birth to prevent the mixing of oxygenated and deoxygenated blood. If the oval opening remains open after birth, it can lead to a condition called patent foramen ovale (PFO). The consequences of PFO include:
Blood in the right atrium would mix with blood in the left atrium:
As the blood flows from the right atrium to the left atrium through the oval opening, the oxygen-poor blood mixes with oxygen-rich blood. This can reduce the amount of oxygen that is delivered to the body.
Increased risk of stroke:
The presence of the PFO can increase the risk of blood clots passing from the right atrium to the left atrium and then to the brain, leading to a stroke.
Decreased exercise tolerance:
In some cases, PFO can cause shortness of breath, fatigue, and decreased exercise tolerance due to reduced oxygen delivery to the body.
Conclusion:
So, the correct answer is option 'C' - Blood in the right atrium would mix with blood in the left atrium.
The oval opening in the heart is a normal structure present in a fetus, which allows blood to bypass the lungs and flow from the right atrium to the left atrium. However, this opening should close shortly after birth to prevent the mixing of oxygenated and deoxygenated blood. If the oval opening remains open after birth, it can lead to a condition called patent foramen ovale (PFO). The consequences of PFO include:
Blood in the right atrium would mix with blood in the left atrium:
As the blood flows from the right atrium to the left atrium through the oval opening, the oxygen-poor blood mixes with oxygen-rich blood. This can reduce the amount of oxygen that is delivered to the body.
Increased risk of stroke:
The presence of the PFO can increase the risk of blood clots passing from the right atrium to the left atrium and then to the brain, leading to a stroke.
Decreased exercise tolerance:
In some cases, PFO can cause shortness of breath, fatigue, and decreased exercise tolerance due to reduced oxygen delivery to the body.
Conclusion:
So, the correct answer is option 'C' - Blood in the right atrium would mix with blood in the left atrium.
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Community Answer
Which of the following would occur as a result of the oval opening in ...
Before birth when the foetus remains in the mother womb then there is no need of taking oxygen from the out side because at this moment the foetus is able to take oxygen from the mother's body through placenta. so at this moment there is no need of any path for blood to go to the lung from the atrium so the blood of right and left atrium mixes up. after when it need to take up oxygen from the outside then the foramen of ovale get closed due to high blood pressure of left atrium.
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Which of the following would occur as a result of the oval opening in the heart remaining open after birth?a)Blood pressure in the lungs would increaseb)Impulses from the sinoatrial (SA) node would stopc)Blood in the right atrium would mix with blood in the left atriumd)A greater amount of blood would flow into the pulmonary systemCorrect answer is option 'C'. Can you explain this answer?
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Which of the following would occur as a result of the oval opening in the heart remaining open after birth?a)Blood pressure in the lungs would increaseb)Impulses from the sinoatrial (SA) node would stopc)Blood in the right atrium would mix with blood in the left atriumd)A greater amount of blood would flow into the pulmonary systemCorrect 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 Which of the following would occur as a result of the oval opening in the heart remaining open after birth?a)Blood pressure in the lungs would increaseb)Impulses from the sinoatrial (SA) node would stopc)Blood in the right atrium would mix with blood in the left atriumd)A greater amount of blood would flow into the pulmonary systemCorrect 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 Which of the following would occur as a result of the oval opening in the heart remaining open after birth?a)Blood pressure in the lungs would increaseb)Impulses from the sinoatrial (SA) node would stopc)Blood in the right atrium would mix with blood in the left atriumd)A greater amount of blood would flow into the pulmonary systemCorrect answer is option 'C'. Can you explain this answer?.
Which of the following would occur as a result of the oval opening in the heart remaining open after birth?a)Blood pressure in the lungs would increaseb)Impulses from the sinoatrial (SA) node would stopc)Blood in the right atrium would mix with blood in the left atriumd)A greater amount of blood would flow into the pulmonary systemCorrect 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 Which of the following would occur as a result of the oval opening in the heart remaining open after birth?a)Blood pressure in the lungs would increaseb)Impulses from the sinoatrial (SA) node would stopc)Blood in the right atrium would mix with blood in the left atriumd)A greater amount of blood would flow into the pulmonary systemCorrect 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 Which of the following would occur as a result of the oval opening in the heart remaining open after birth?a)Blood pressure in the lungs would increaseb)Impulses from the sinoatrial (SA) node would stopc)Blood in the right atrium would mix with blood in the left atriumd)A greater amount of blood would flow into the pulmonary systemCorrect answer is option 'C'. Can you explain this answer?.
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Which of the following would occur as a result of the oval opening in the heart remaining open after birth?a)Blood pressure in the lungs would increaseb)Impulses from the sinoatrial (SA) node would stopc)Blood in the right atrium would mix with blood in the left atriumd)A greater amount of blood would flow into the pulmonary systemCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for Which of the following would occur as a result of the oval opening in the heart remaining open after birth?a)Blood pressure in the lungs would increaseb)Impulses from the sinoatrial (SA) node would stopc)Blood in the right atrium would mix with blood in the left atriumd)A greater amount of blood would flow into the pulmonary systemCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of Which of the following would occur as a result of the oval opening in the heart remaining open after birth?a)Blood pressure in the lungs would increaseb)Impulses from the sinoatrial (SA) node would stopc)Blood in the right atrium would mix with blood in the left atriumd)A greater amount of blood would flow into the pulmonary systemCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
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