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8 July, 00:46

What is the role of the ventral respiratory group (VRG) in the reticular formation of the medulla oblongata?

A: They maintain the basic ventilatory rhythm.

B: Neurons from the VRG stimulate somatic motor neurons to the external intercostal muscles.

C: They sense falling concentrations of O2 or rising levels of CO2.

D: They signal the respiratory center to increase the rate and depth of breathing when the blood is too acidic.

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  1. 8 July, 03:53
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    B: Neurons from the VRG stimulate somatic motor neurons to the external intercostal muscles.
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