Extreme challenges to an animals physiology allow us toexplore and bet...

Extreme challenges to an animalâ€™s physiology allow us to explore and better understand the function of...

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Medical Sciences

Extreme challenges to an animalâ€™s physiology allow us toexplore and better understand the function of systems in thebody.Â Â Please address the following questions regardingthe initial reflexive changes (before acclimatization) that occurin response to ascent to altitude.
Outline the initial global reflexes that occur in response tothe low PO₂ at high altitude. Be sure to include allcomponents of the reflex arcs for cardiovascularand respiratory systems.
Compare these global reflexes tolocal reflexes occurring in the lungs.
How do the global and local reflexesaddress the optimization of the ventilation : perfusion ratio(keeping it close to 1)

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Acclimatisation At high altitude barometric pressure decreases and there is decrease in po2 partial pressure of 02 while PCo2 and PH remain constant In acclimatised child individual Oxygen delivery to tissues is maintained by Haemoconcentration 1 Increase 23 DPG biphosphoglycric acid reduces the affinity of hb for Oxygen and increase in relaese of O2 at tissue levels help a lot 2Increase in See Answer

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