Answer
B
Work Step by Step
Control of respiration occurs by two centers: medullary respiratory center and pontine respiratory center. Medullary respiratory center is further divided into:
• Ventral respiratory group: controls the rhythm of breathing
• Dorsal respiratory group: modifies the rhythm created by
ventral respiratory group
Pontine respiratory center, on the other hand, makes the respiratory pattern smoother by interacting with medullary
respiratory centers.
