At higher altitudes, the atmospheric pressure is lower. This results in a lower partial pressure of oxygen, which reduces the amount of oxygen that can be taken up by the lungs and delivered to the body's tissues, leading to hypoxia.
'Altitude sickness' is caused at high altitude due to
Asked in UPSC CDS 2 2016 · Topic: Human Anatomy and Physiology (Respiratory System)
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Answer: B. low partial pressure of oxygen
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