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: Unknown
Murphy eye seen in: 
Select and explain. 
A. Endotracheal tube, B. Millers blade, C. Macintosh blade, D. FOB
A: Endotracheal tube
Answer: A: Endotracheal tube 
Explanation: Ref. Oxford textbook of anesthesia. Page. 4
 
Murphy Eye:
The “Murphy eye” is the eponymous name for a hole on the side of most endotracheal tubes (ETTs) that functions as a vent, and prevents the complete obstruction of the patient’s airway, should the primary distal opening of an ETT become occluded
The original ET tube by Dr. Murphy