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Under normal physiological conditions in human being every 100 ml of oxygenated blood can deliver ___________ ml of O2 to the tissues. (NEET 2022 Phase 1)
- a)5 ml
- b)4 ml
- c)10 ml
- d)2 ml
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Under normal physiological conditions in human being every 100 ml of o...
Oxygen Delivery in Human Physiology
In human physiology, the delivery of oxygen from the blood to the tissues is a critical function. Under normal conditions, the amount of oxygen transported in the blood can be quantified.
Oxygen Content in Blood
- Oxygenated blood typically contains about 20 ml of O2 per 100 ml of blood.
- This oxygen is bound to hemoglobin in red blood cells, with a small portion dissolved in plasma.
Oxygen Delivery to Tissues
- Of the 20 ml of oxygen carried in 100 ml of blood, approximately 5 ml of O2 is delivered to the tissues during normal physiological conditions.
- This is based on the metabolic needs of the tissues, which utilize oxygen for cellular respiration.
Clinical Significance
- Understanding this delivery capability is crucial in various medical fields, especially in assessing respiratory function and conditions like hypoxia.
- The value may vary under different physiological or pathological conditions, but 5 ml is considered a standard delivery amount in healthy individuals.
Conclusion
- Hence, the correct answer to the question regarding the amount of oxygen delivered to tissues from 100 ml of oxygenated blood is 5 ml (option A). This highlights the efficiency of the respiratory and circulatory systems in meeting the metabolic demands of the body.
In human physiology, the delivery of oxygen from the blood to the tissues is a critical function. Under normal conditions, the amount of oxygen transported in the blood can be quantified.
Oxygen Content in Blood
- Oxygenated blood typically contains about 20 ml of O2 per 100 ml of blood.
- This oxygen is bound to hemoglobin in red blood cells, with a small portion dissolved in plasma.
Oxygen Delivery to Tissues
- Of the 20 ml of oxygen carried in 100 ml of blood, approximately 5 ml of O2 is delivered to the tissues during normal physiological conditions.
- This is based on the metabolic needs of the tissues, which utilize oxygen for cellular respiration.
Clinical Significance
- Understanding this delivery capability is crucial in various medical fields, especially in assessing respiratory function and conditions like hypoxia.
- The value may vary under different physiological or pathological conditions, but 5 ml is considered a standard delivery amount in healthy individuals.
Conclusion
- Hence, the correct answer to the question regarding the amount of oxygen delivered to tissues from 100 ml of oxygenated blood is 5 ml (option A). This highlights the efficiency of the respiratory and circulatory systems in meeting the metabolic demands of the body.
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Community Answer
Under normal physiological conditions in human being every 100 ml of o...
- Option (b) is the correct answer because every 100 ml of oxygenated blood can deliver around 5 ml of O2 to the tissues under normal physiological conditions.
- Option (c), (d) and (a) are incorrect because every 100 ml of deoxygenated blood delivers approximately 4 ml of CO2 to the alveoli.
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