In healthy and untrained subjects,the alinear rise in minute ventilation observed during incremental exercise (i.e. ,ventilatory threshold) could be due to
A) a significant decline in arterial PO2.
B) an increase in arterial PCO2.
C) an increase in arterial pH.
D) a decrease in arterial pH.
Correct Answer:
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Q1: Carbon dioxide is transported in arterial blood
Q2: A by-product of anaerobic glycolysis in red
Q4: Most of the O2 contained in the
Q5: Small changes in arterial PCO2 have a
Q6: Exercise-induced hypoxemia that often occurs in elite
Q7: The central chemoreceptors that influence the control
Q8: The respiratory control center is located in
Q9: A decline in arterial PO2 to 70
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Q11: During exercise at sea level,young,healthy untrained subjects
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