Cranial Nerves, Cranial Nerves

CN I

Olfactory

Olfactory (I)

Sense of Smell (Special Sensory Visceral)

CN II

Optic

Optic (II)

Vision (Special Somatic Sensory)

CN III

Oculometer

Oculomotor (III)

Three Rectus Muscles (Superior, Medial, Inferior) of the Eye, Levator Palpebrea, Inferior Oblique (Somatic Motor)

Muscles of the Iris, Ciliary Muscles (Visceral Motor)

CN IV

Trochlear

Trochlear (IV)

Superior Oblique Muscle (Somatic Motor)

CN V

Trigeminal

Trigeminal (V)

V1: General Somatic Sensation from Skin of Anterior Scalp and Forehead, Upper Eyelid and Nose, Nasal Cavity Mucosa, Cornea, and Lacrimal Gland

V2: General Somatic Sensation from Cheek, Upper Lid, Lower Eyelid, Nasal Cavity Mucosa, Palate, Upper Teeth

V3: General Somatic Sensation from Skin of Chin and Temporal Range of the Scalp, Anterior Tongue and Lower Teeth

V2: Innervates the Muscles of Mastication: Temporalis, Masseter, Pterygoids, Anterior Belly of the Digastric (Somatic Motor)

CN VI

Abducens

Abducens (VI)

Lateral Rectus Muscle of the Eye (Somatic Motor)

CN VII

Facial

Facial (VII)

Taste Buds on Anterior 2/3 of Tongue (Special Visceral Sensory); Facial Muscles and Posterior Belly of Digastric (Somatic Motor); Lacrimal Glands, Nasal and Palatine Glands, and the Submandibular and Sublingual Salivary Glands (Visceral Motor)

CN VIII

Vestibulocochlear

Vestibulocochlear (VIII)

Equilibrium and Hearing (Special Somatic Sensory)

CN IX

Glossopharyngeal

Glossopharyngeal (XI)

Taste Buds from Posterior 1/3 of Tongue (Special Somatic); Posterior 1/3 of Tongue, Pharyngeal Mucosa, Chemoreceptors in the Carotid Body and Baroreceptors of Carotid Sinus (Visceral Sensory); Stylopharyngeus (Somatic Motor); Parotid Salivary Gland (Visceral Motor); (R)

CN X

Vagus

Vagus (X)

Sensory from the Thoracic and Abdominal Viscera, Mucosa of the Pharynx and Larynx, Carotid Sinus, and Carotid and Aortic Bodies (Visceral Sensory); Taste Buds on the Epiglottis (Special Visceral Sensory); Muscles of the Pharynx and Larynx (Somatic Motor); Heart, Lungs, Abdominal Viscera, Heart Rate, Breathing, and Digestive System Activity (Visceral Motor)

CN XI

accessory

Accessory (XI)

Trapezius and Sternocleidomastoid (Somatic Motor)

CN XII

Hypoglossal

Hypoglossal (XII)

Intrinsic and Extrinsic Muscles of Tongue (Somatic Motor)

Cranial Nerve Mnemonic

Oh, Oh, Oh, To Touch And Feel Very Good Velvet, Ah Heaven

CN Type Mnemonic

Some Say Marry Money, But My Brother Says Big Brains Matter More

Oh, Oh, Oh,

To

Touch

And

Feel

Very

Good

Velvet

Ah

Heaven

Olfactory = CN I

Optic = CN II

Occulomotor = CN III

Trochlear = CN IV

Trigemminal = CN V

Abducens = CN VI

Facial = CN VII

Vestibulocochlear = CN VIII

Glossopharyngeal = CN IX

Vagus = CN X

Accessory = CN XI

Hypoglossal = CN XII