Cranial Nerves

What is the name of Cranial Nerve I (CN I)?

Olfactory nerve

What is the name of Cranial Nerve II (CN II)?

Optic nerve

What is the name of Cranial Nerve III (CN III)?

Oculomotor nerve

What is the name of Cranial Nerve IV (CN IV)?

Trochlear nerve

What is the name of Cranial Nerve V (CN V)?

Trigeminal nerve

What is the name of Cranial Nerve VI (CN VI)?

Abducens nerve

What is the name of Cranial Nerve VII (CN VII)?

Facial nerve

What is the name of Cranial Nerve VIII (CN VIII)?

Vestibulocochlear nerve

What is the name of Cranial Nerve IX (CN IX)?

Glossopharyngeal nerve

What is the name of Cranial Nerve X (CN X)?

Vagus nerve

What is the name of Cranial Nerve XI (CN XI)?

Accessory nerve

What is the name of Cranial Nerve XII (CN XII)?

Hypoglossal nerve

What is the primary function of the Olfactory nerve (CN I)?

Sense of smell

What is the primary function of the Optic nerve (CN II)?

Sense of sight (vision)

What is the primary function of the Oculomotor nerve (CN III)?

Eye movement and pupil constriction

What is the primary function of the Trochlear nerve (CN IV)?

Eye movement (specifically the superior oblique muscle)

Which cranial nerve provides sensory information from the face and controls the muscles of mastication (chewing)?

Trigeminal nerve (CN V)

What is the primary function of the Abducens nerve (CN VI)?

Eye movement (specifically the lateral rectus muscle)

Which cranial nerve is responsible for facial expressions and taste on the anterior two-thirds of the tongue?

Facial nerve (CN VII)

What dual functions does the Vestibulocochlear nerve (CN VIII) perform?

Hearing and balance (equilibrium)

Which nerve is responsible for taste on the posterior one-third of the tongue and swallowing?

Glossopharyngeal nerve (CN IX)

Which cranial nerve provides parasympathetic innervation to the heart, lungs, and digestive tract?

Vagus nerve (CN X)

What is the primary motor function of the Accessory nerve (CN XI)?

Shrugging the shoulders and turning the head

Which cranial nerve controls the muscles of the tongue for speech and swallowing?

Hypoglossal nerve (CN XII)

Is the Olfactory nerve (CN I) categorized as sensory, motor, or both?

Sensory

Is the Optic nerve (CN II) categorized as sensory, motor, or both?

Sensory

Is the Oculomotor nerve (CN III) categorized as sensory, motor, or both?

Motor

Is the Trochlear nerve (CN IV) categorized as sensory, motor, or both?

Motor

Is the Trigeminal nerve (CN V) categorized as sensory, motor, or both?

Both (Sensory and Motor)

Is the Abducens nerve (CN VI) categorized as sensory, motor, or both?

Motor

Is the Facial nerve (CN VII) categorized as sensory, motor, or both?

Both (Sensory and Motor)

Is the Vestibulocochlear nerve (CN VIII) categorized as sensory, motor, or both?

Sensory

Is the Glossopharyngeal nerve (CN IX) categorized as sensory, motor, or both?

Both (Sensory and Motor)

Is the Vagus nerve (CN X) categorized as sensory, motor, or both?

Both (Sensory and Motor)

Is the Accessory nerve (CN XI) categorized as sensory, motor, or both?

Motor

Is the Hypoglossal nerve (CN XII) categorized as sensory, motor, or both?

Motor

In the mnemonic 'Some Say Marry Money But My Brother Says Big Brains Matter Most', what does the 'B' stand for regarding nerve type?

Both (Sensory and Motor)

In the mnemonic 'Some Say Marry Money But My Brother Says Big Brains Matter Most', what does the 'S' stand for regarding nerve type?

Sensory

In the mnemonic 'Some Say Marry Money But My Brother Says Big Brains Matter Most', what does the 'M' stand for regarding nerve type?

Motor

Which three cranial nerves are purely sensory?

Olfactory (CN I), Optic (CN II), and Vestibulocochlear (CN VIII)

Which five cranial nerves are purely motor?

Oculomotor (CN III), Trochlear (CN IV), Abducens (CN VI), Accessory (CN XI), and Hypoglossal (CN XII)

Which four cranial nerves carry both sensory and motor fibers?

Trigeminal (CN V), Facial (CN VII), Glossopharyngeal (CN IX), and Vagus (CN X)

The mnemonic 'Oh Oh Oh To Touch And Feel Very Green Vegetables AH' helps remember the _____ of the cranial nerves.

Names

Which cranial nerve is responsible for the gag reflex and taste on the posterior 1/3 of the tongue?

Glossopharyngeal nerve (CN IX)

The _____ nerve controls the sternocleidomastoid and trapezius muscles.

Accessory (CN XI)

Which nerve is specifically associated with the 'Superior Oblique' eye muscle?

Trochlear nerve (CN IV)

Which nerve is specifically associated with the 'Lateral Rectus' eye muscle?

Abducens nerve (CN VI)

Which nerve is responsible for the sensory portion of the corneal reflex?

Trigeminal nerve (CN V)

Which nerve is responsible for the motor portion of the corneal reflex (closing the eye)?

Facial nerve (CN VII)

The _____ nerve is unique for exiting the brainstem and extending into the thoracic and abdominal cavities.

Vagus (CN X)

Damage to the _____ nerve would result in an inability to stick the tongue out straight.

Hypoglossal (CN XII)

Which cranial nerve mediates the sense of equilibrium?

Vestibulocochlear nerve (CN VIII)

The 'chewing' muscles are innervated by which cranial nerve?

Trigeminal nerve (CN V)

A patient unable to smile or wrinkle their forehead likely has an issue with the _____ nerve.

Facial (CN VII)

Which cranial nerve regulates the constriction of the pupil?

Oculomotor nerve (CN III)

Identify the nerve number for the Glossopharyngeal nerve.

IX

Identify the nerve number for the Abducens nerve.

VI

Identify the nerve number for the Trigeminal nerve.

V

Identify the nerve number for the Accessory nerve.

XI

The sensation of a 'lump in the throat' or general throat sensation is primarily carried by the _____ nerve.

Vagus (CN X)

Which cranial nerves are involved in the movement of the eyeball?

III, IV, and VI

What is the sensory function of the Facial nerve (CN VII)?

Taste from the anterior two-thirds of the tongue

What is the motor function of the Trigeminal nerve (CN V)?

Innervation of muscles for mastication (chewing)

Which cranial nerve is numbered XII?

Hypoglossal nerve

Which cranial nerve is numbered VIII?

Vestibulocochlear nerve