Respiration Rates Are Mainly Controlled by the Medulla Oblongata and

Multiple Choice

Respiration rates are mainly controlled by the medulla oblongata and

A) midbrain, in response to changes in the amount of O₂ in the arterial blood.
B) pons, in response to changes in the amount of CO₂ in the arterial blood.
C) midbrain, in response to changes in the amount of CO₂ in the arterial blood.
D) pons, in response to changes in the amount of O₂ in the arterial blood.
E) hypothalamus, in response to changes in the amount of O₂ in the arterial blood.