- A Medulla oblongata, in the brainstem
- B Cerebrum, in the frontal region
- C Cerebellum, behind the brainstem
- D Spinal cord, near the cervical region
Correct answer: A. Medulla oblongata, in the brainstem
Explanation: The respiratory rhythm centre in the medulla oblongata generates the basic rhythm of breathing; a pneumotaxic centre in the pons fine-tunes it.
Concept context
The mechanics of breathing, lung volumes, gas transport in blood, the Bohr effect, and respiratory regulation.