Cranial Nerve
Olfactory Nerve (I)
Component
Sensory (Senses)
Function
Smell
Optic Nerve (II)
Sensory
Sight
Occulomotor Nerve (III)
Motor
(Movement)
Raises upper eyelid
Turns Eyeball upward, downward, medially
Constricts pupil
Accommodates the eye
Trochlear Nerve (IV)
Motor
Assist in turning the eye downward and medially
Trigeminal Nerve (V) – Broken down into 3
parts
V1. Opthalamic Nerve
V2. Maxillary Nerve
V3. Mandible Nerve
MIXED
Sensory
Sensory
Motor
Cornea, Skin of forehead, scalp, eyelids and nose, mucus membrane of nasal cavity
Skin of the face over maxilla, teeth of the upper jaw
Muscles of mastication(chewing), mylohoid muscle, Anterior belly of digastic
Abducent Nerve (VI)
Motor
Lateral rectus muscle turns eyeball laterally
Facial Nerve (VII)
Mixed
Motor: muscles of the face and scalp
Sensory: Taste from anterior 2/3 of tongue, from the floor of the mouth and palate
Vestibulocochlear Nerve (VIII)
Sensory
Vestibular: position of the head (balance and equilibrium)
Cochlear: Organ of Corti (organ of hearing)
Glossopharyngeal Nerve (IX)
Mixed
Motor: Assist in swallowing (muscles in the throat and esophagus)
Sensory: General sensation and taste from ½ of the tongue and pharynx
Vagus Nerve (X)
Mixed
Heart and great thoracic blood vessels, larynx, trachea, bronchi and lungs, liver,
kidney, pancreas
Accessory Nerve (XI)
Motor
Cranial Root: muscles of the soft palate, muscles of the pharynx, muscles of the
larynx
Spinal Root: Sternocleidomastoid and trapezius muscle
Hypoglossal Nerve (XII)
Motor
Muscles of the tongue
Mneumonic:
Ooh, Ooh, Ooh, to touch and feel very good Velvet and Horses
(Olfactory, Optic, Occulomotor, Trochlear, Trigeminal, Abducent, Facial, Vestibulocochlear, Glossopharyngeal, Vagus, Accessory, Hypoglossal)
Some Say Marry Money But My Brother Says Big Brains Matter Most
(Sensory, Sensory, Motor, Motor, Both, Motor, Both, Sensory, Both, Both, Motor, Motor)