Question

Respiration in human body is regulated by

• A. Spinal cord
• B. Medulla
• C. Pons
• D. Both B and C

Answer 1

The correct option is D Both B and C

The medulla oblongata is the primary respiratory control center. Its main function is to send signals to the muscles that control respiration to cause breathing to occur. There are two regions in the medulla that control respiration: The ventral respiratory group stimulates expiratory movements. The apneustic (stimulating) and pnuemotaxic (limiting) centers of the pons work together to control rate of breathing. The medulla sends signals to the muscles that initiate inspiration and expiration and controls nonrespiratory air movement reflexes, like coughing and sneezing.
So, the correct option is option D.