This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
Transection at mid - Pons Level with intact vagus results in 
Select and explain. 
A. Apneusis, B. Irregular shallow breathing, C. Deep and slow breathing, D. Hyperventilation
C: Deep and slow breathing
Answer: C: Deep and slow breathing 
Explanation: Transection at Mid - Pons level
a) Vagus intact ⇒ Regular respiration with deep and slow breathing.
b) Vagotomy ⇒ Apneusis.