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MDCAT Biology QUESTION #4267
Question 1
Which part of the brain contains central chemoreceptors that monitor $CO_2$ levels in blood?
  • Pons
  • Midbrain
  • Hypothalamus
  • Medulla oblongata✔️
Correct Answer Explanation
The medulla oblongata contains central chemoreceptors that detect changes in $CO_2$ and pH of cerebrospinal fluid, regulating the breathing rate.