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
Nerve of Grassi is related to? 
Select and explain. 
A. Facial nerve, B. Glossopharyngeal nerve, C. Vagus nerve, D. Hypoglossal nerve
C: Vagus nerve
Answer: C: Vagus nerve 
Explanation: The nerve of Grassi is one of the branches of posterior vagal trunk that supplies the gastric fundus. It provides parasympathetic supply. -Reference: Textbook of anatomy, Abdomen and Lower limb, Vishram Singh, 2nd edition, page no.102