<prompt> Complex sectioning transverse at mid pons level along with vagi results inAsphyxiaHyperventilationRapid and shallow breathingApneusis  <response>: Section A: Cut at upper part of pons: Decerebration: Normal rhythmic breathing continues. Loss of voluntary breath holding. If vagi are cut, increase in depth and slow breathing. Section B: Cut at mid-pons: Apneustic center Ap intact but pneumotaxic centre separated. Ap stimulates Inspiratory I neurons, which increase depth of breathing.Vagi intact: Regular respiration with deep and slow breathing increase in TV and a slight decrease in RR.Vagi cut: Arrest of respiration in maximum inspiratory phase apneusis interrupted by brief expiration. Section C: Cut at inferior portion of pons: All the pontine tissue is separatedVagi intact: Irregular and gasping but it is rhythmic because pacemaker tissue is intact.Vagi cut: Same effect as above, because vagi are connected to Ap center. Section D: Cut below medulla: Complete transection of brainstem:Stops all respiration apnoea and death.Bilateral vagotomy only: Regular respiration with deep and slow breathing increase in TV and a slight decrease in RR. 