Exam questionKROK 1Medicine ยท 2010
Voluntary breath-holding caused increase of respiration depth and frequency. The main factor stimulating these changes of external respiration is:
Answer options
- Increased tension of O2 in blood
- Decreased tension of O2 in blood
- Decreased tension of CO2 in blood
- Decreased concentration of H in blood
- Increased tension of CO2 in blood
Correct answer
Increased tension of CO2 in blood
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