Which of the following would occur if the brainstem was transected between the pons and the medulla?
Show answer and explanation
Correct answer: Breathing would continue but become irregular and gasping
The basic rhythm is generated in the medulla, but the pons (pneumotaxic and apneustic centers) is required to smooth the transition between inspiration and expiration. Without the pons, the medullary rhythm is irregular and inefficient.
Keep practicing
More Control of respiration questions
- Which receptor type is responsible for the 'cough reflex' when mucus or dust enters the larger airways?
- The 'breaking point' of breath-holding is primarily determined by the buildup of which substance?
- Which area of the brain allows for the conscious, voluntary bypass of the medullary respiratory centers (e.g., when singing or holding one'…
- During metabolic acidosis, what is the ventilatory response and its physiological purpose?
- What is the effect of sleep on the CO2 response curve of the respiratory system?
- Which region of the brainstem is primarily responsible for generating the basic rhythm of respiration?