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: Physiology
[{'content': 'Pacemaker cells of the GIT can be seen in \nSelect and explain. \nA. Cardiac end of stomach, B. Long muscle of small intestine, C. Pyloric end of stomach, D. Fundus of stomach', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Pacemaker cells of GIT are absent in esophagus and proximal stomach.\nDistal stomach & small intestine- Pacemaker cells present in outer circular muscle layer near myenteric plexus.\nColon- Submucosal border of circular muscle layer.', 'role': 'assistant'}]