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USMLE Mnemonics & Tips
• Gag Reflex: CN IX (In), CN X (Out).
• Cough Reflex: CN X (In - Internal Laryngeal), CN X (Out - Recurrent Laryngeal).
• Jaw Jerk: CN V3 (In), CN V3 (Out).
• Corneal Reflex: CN V1 (In), CN VII (Out).
• Pupillary Light: CN II (In), CN III (Out).
Anatomical Diagrams