English
Syllabus

When you hold your breath, identify the gas changes that occur in blood and would first lead to the urge to breathe. -

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Question

When you hold your breath, identify the gas changes that occur in blood and would first lead to the urge to breathe.

Options

  • Falling CO2 concentration

  • Falling O2 concentration

  • Rising CO2 and falling O2 concentration

  • Rising CO2 concentration

MCQ

Solution

Rising CO2 and falling O2 concentration

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Mechanism of respiration-Breathing
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