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At higher elevations, as in the mountains, there is less oxygen content In the air. How would the body respond to this?a. The breathing center in the brain would increase the breathing rate Or b. There is no mechanism for the body to respond to this phenomenon

Answer :

There is decrease in the O2 content in the air at higher elevations. The condition is called as hypoxia when the body is deprived of sufficient amount of O2 supply. The reaction of the lungs is to tighten the blood vessels and thereby cause an increase in breathing rate or hyperventilation. The breathing is called as high-altitude periodic breathing (PB). Adaption of the body to this kind of phenomenon is the increase the RBC production and decreasing the binding capacity of hemoglobin. This will eventually lead to increase in breathing rate.

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