Regulation of breathing rate Label the figure below to indicate how breathing rate is regulated. Not all labels will be used. Oxygen in blood is too high Oxygen in blood is too low Breathing rate increases Blood becomes too basic Carbon dioxide in blood is Carbon dioxide in blood is Carbon dioxide in blood is too low too high Thalamus detects change normal Blood becomes more Blood flow to lungs increases acidic Oxygen in blood is normal Medulla detects change Carbon dioxide concentration decreases Reset

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