This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Anatomy
All of the following statements about the vagus nerve are true except that it 
Select and explain. 
A. Supplies hea & lung, B. Carries postganglionic parasympathetic fibers, C. Innervates right two third of transverse colon, D. Stimulates peristalsis & relaxes sphincters
B: Carries postganglionic parasympathetic fibers
Answer: B: Carries postganglionic parasympathetic fibers 
Explanation: It carries preganglionic secretomotor fibres to the submandibular ganglion for supply of the submandibular and sublingual salivary glands. REF:BDC VOL.3,FIFTH EDITION.