Murphy's eye is pa of which of the following devise:-: (A) Endotracheal tube, (B) Laryngeal mask airway, (C) Anesthesia face mask, (D) Mapleson circuit
Answer is A. It is the pa of Endotracheal tube just distal to proximal opening. Size of ETT Adult Male : 8mm ID-9mm ID Adult Female :7mm ID-8mm ID Pediatric <6yrs Age/4 + 4.5mm ID >6yrs Age/3 + 3.5mm ID