This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anaesthetic equipments, Subject name: Anaesthesia
Murphy&;s eye is seen in 
Select and explain. 
A. Macintosh laryngoscope, B. Endotracheal tube, C. LMA, D. Flexible laryngoscope
B: Endotracheal tube
Answer: B: Endotracheal tube 
Explanation: * 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. REF : WILLEY 10TH ED