Cranial Nerves Quiz: Can You Name All Twelve?

1. Which cranial nerve is responsible for the sense of smell?

CN I (Olfactory)

CN II (Optic)

CN III (Oculomotor)

CN IV (Trochlear)

2. The optic nerve (CN II) carries what type of information to the brain?

Motor signals to eye muscles

Visual information from the retina

Taste sensations

Facial sensation

3. Which cranial nerve innervates the superior oblique muscle of the eye?

CN III (Oculomotor)

CN IV (Trochlear)

CN V (Trigeminal)

CN VI (Abducens)

4. The trigeminal nerve (CN V) is divided into three main branches. Which branch innervates the lower jaw?

Ophthalmic division

Maxillary division

Mandibular division

Lingual division

5. Which cranial nerve controls the muscles of facial expression?

CN V (Trigeminal)

CN VI (Abducens)

CN VII (Facial)

CN VIII (Vestibulocochlear)

6. The vestibulocochlear nerve (CN VIII) has two main divisions. Which division carries hearing information?

Vestibular division

Cochlear division

Auditory division

Equilibrium division

7. Which cranial nerve innervates the tongue for both taste and motor function?

CN VII (Facial) for taste; CN XII (Hypoglossal) for motor

CN IX (Glossopharyngeal) for both

CN X (Vagus) for both

CN V (Trigeminal) for both

8. The vagus nerve (CN X) has the most extensive distribution. Which of these is NOT innervated by CN X?

Pharynx

Larynx

Heart

Pupil of the eye

9. Which cranial nerve innervates the sternocleidomastoid and trapezius muscles?

CN IX (Glossopharyngeal)

CN X (Vagus)

CN XI (Accessory)

CN XII (Hypoglossal)

10. The abducens nerve (CN VI) innervates which extraocular muscle?

Medial rectus

Lateral rectus

Superior rectus

Inferior oblique

11. Which cranial nerve carries parasympathetic fibers to the salivary glands?

CN V (Trigeminal)

CN VII (Facial) and CN IX (Glossopharyngeal)

CN VIII (Vestibulocochlear)

CN X (Vagus) only

12. A patient with Bell's palsy has damage to which cranial nerve?

CN V (Trigeminal)

CN VII (Facial)

CN IX (Glossopharyngeal)

CN X (Vagus)

13. The oculomotor nerve (CN III) is responsible for pupil constriction through which mechanism?

Sympathetic innervation of the iris

Parasympathetic innervation of the sphincter pupillae

Somatic motor control of the ciliary muscle

Sensory feedback from the retina

14. Which cranial nerve has the longest course and innervates structures throughout the thorax and abdomen?

CN IX (Glossopharyngeal)

CN X (Vagus)

CN XI (Accessory)

CN XII (Hypoglossal)

15. Damage to the hypoglossal nerve (CN XII) results in which clinical finding on the affected side?

Inability to move the eye laterally

Loss of taste sensation

Tongue deviation toward the paralyzed side

Facial muscle weakness

Cranial Nerves Quiz: Can You Name All Twelve?

1. Which cranial nerve is responsible for the sense of smell?

2.

What first name or nickname would you like us to use?

2. The optic nerve (CN II) carries what type of information to the brain?

3. Which cranial nerve innervates the superior oblique muscle of the eye?

4. The trigeminal nerve (CN V) is divided into three main branches. Which branch innervates the lower jaw?

5. Which cranial nerve controls the muscles of facial expression?

6. The vestibulocochlear nerve (CN VIII) has two main divisions. Which division carries hearing information?

7. Which cranial nerve innervates the tongue for both taste and motor function?

8. The vagus nerve (CN X) has the most extensive distribution. Which of these is NOT innervated by CN X?

9. Which cranial nerve innervates the sternocleidomastoid and trapezius muscles?

10. The abducens nerve (CN VI) innervates which extraocular muscle?

11. Which cranial nerve carries parasympathetic fibers to the salivary glands?

12. A patient with Bell's palsy has damage to which cranial nerve?

13. The oculomotor nerve (CN III) is responsible for pupil constriction through which mechanism?

14. Which cranial nerve has the longest course and innervates structures throughout the thorax and abdomen?

15. Damage to the hypoglossal nerve (CN XII) results in which clinical finding on the affected side?