Section of the vagus nerve results in
Increased rate of respiration
Decreased depth of respiration
Irregular breathing patterns
Increases in breath - holding time
Vagus nerve causes contraction of bronchial muscle helping in expiration. Section of vagus nerve leads to difficulty in expiration and therefore increasing breath holding time. Ref: Ganong&;s review of medical physiology; 23rd edition; pg: 267; table 17-1.
Nervous system