5 Questions
What is the physiological response to arterial hypoxia at high altitudes?
Increased renal bicarbonate (HCO3-) excretion
Which of the following indices would be expected to be higher in the man living at sea level?
Diameter of pulmonary vessels
What causes an increase in hematocrit in people living at high altitude?
Increased mitochondrial density in a muscle biopsy
What is the effect of chronic exposure to hypoxemia caused by living at high altitude on mitochondrial density?
Increases mitochondrial density
What is the impact of living at high altitude on pulmonary vessels?
Pulmonary vasoconstriction
Test your knowledge of how environmental factors can impact physiological indices in this USMLE practice quiz. Answer questions related to the effects of different living conditions on pulmonary vessels, erythropoietin production, mitochondrial density, renal bicarbonate excretion, and respiratory rate.
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