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: Surgery
Electrical pacemaker of stomach is situated in- 
Select and explain. 
A. fundus, B. Body, C. Incisura  Gastro oesphageal junction, D. All of the above
A: fundus
Answer: A: fundus 
Explanation: Shackelford “The gastric pacemaker, which is located in the body along the greater curvature, stimulates both the filling and mixing of food in the body and antrum.”
• Gastric pacemaker: Interstitial cells of Cajal (ICCs)
• Location: In body along the greater curvature
• ICCs are critical for the generation of sequential contractions