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1. CN I (Olfactory nerve / sense) : smell
2. CN II (Optic nerve / sense ) : Vision
3. CN III ( Oculomotor nerve / motor) :
–  Eye muscle function : controls all muscles of the eye except for the superior oblique muscle controlled by the trochlear nerve
–  Pupil response: constriction pupil
4. CN IV (Trochlear nerve / motor) : downward, outward and inward eye movement
5. CN V ( Trigeminal nerve / sensory and motor )
– Sensory : skin of the face
– Motor : chewing    – pupil dilatation
6. CN VI ( Abducens nerve / motor ) ; outward eye movement
7. CN VII ( Facial nerve / sensory and motor)
– Sensory : sense of the taste for most tongue
–  Motor : facial expression    – Lacrimation, salvation
8. CN VIII ( Vestibulocochlear nerve / sensory ) ; hearing and balance
9. CN IX ( Glosspharyngeal nerve / sensory and motor) :
– Sensory : oral sensation, taste of the back part of the tongue
– Motor : swallowing, gag reflex     – Salivation, gag reflex
10. CN X (Vagus nerve / sensory and motor)
– Swallowing, gag reflex, coughing, heart rate,  peristalsis, sweating (Provide sensory and Parasympathetic supply to structure in the neck and most organs in the chest and abdomen)
11. CN XI ( Accessory nerve / motor) : controls the neck muscles
12. CN XII ( Hypoglossal nerve / motor ) : controls tongue movement