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How does exercise affect saturation of oxygen on hemoglobin and exchange of oxygen? How about hypothermia..?...

How does exercise affect saturation of oxygen on hemoglobin and exchange of oxygen? How about hypothermia..? How about increasing altitude..?

Science   Anatomy-And-Physiology   
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Exercise leads to an increase in acidity, temperature and metabolic intermediates and causes decrement in oxygen in the muscle tissues. This causes an increased dissociation of oxygen from the blood flowing through the muscles, supplying them with much needed oxygen.

A decrease in the body temperature or hypothermia leads to a leftward shift in the oxyhemoglobin dissociation curve, which signifies the increases hemoglobin affinity for oxygen.

The amount of haemoglobin in blood increases at high altitude which is done to acclimize the body towards high altitude. Increasing the amount of haemoglobin in the blood increases the amount of oxygen that can be carried by it.

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