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Cranial nerves 1-12 control the following: 1. Smell 2. Visual acuity, visual fields and ocular fundi. 2. and 3. - Pupillary reactions. 3. 4. and 6. - Extra ocular movements, including opening of the eyes. 5. Facial sensation, movements of the jaw, and corneal reflexes. 7. Facial movements and gustation. 8. Hearing and balance. 9. and 10. - Swallowing, evaluation of the palate, gag reflex and gustation. 5. 7. and 12. - Voice and speech. 11. Shrugging the shoulders and turning the head. 12. Movement and protrusion of the tongue.