Cranial Nerves Quiz

What functions does the Hypoglossal Nerve (Nerve #12) provide?

• Controls secretions from viscera

• Provides tongue movements for speech, food manipulation & swallowing

• Sense of balance

• Hearing

What is a consequence of damage to the Accessory Nerve (Nerve #11)?

• Impaired swallowing & fatal if both are cut

• Vertigo, nausea, loss of balance & nystagmus

• Damage causes impaired head, neck & shoulder movement, head turns towards injured side

• Inability to rotate eye laterally & at rest eye rotates medially

The Vagus Nerve (Nerve #10) is responsible for which of the following?

• Provides control over swallowing, salivation, gagging, sensations from posterior 1/3 of tongue

• Receives sensations from viscera

• Cochlear branch goes to cochlea

• Provides facial expressions

What symptoms are produced if the Vestibulocochlear Nerve (Nerve #8) is damaged?

• Ipsilateral atrophy if one side is damaged

• Damage causes hoarseness or loss of voice

• If damaged produces vertigo, nausea, loss of balance & nystagmus

• Damage produces sagging facial muscles & disturbed sense of taste

Which nerve is affected in Bell's palsy, leading to sagging facial muscles?

• Glossopharyngeal Nerve (Nerve #9)

• Facial Nerve (Nerve #7)

• Accessory Nerve (Nerve #11)

• Hypoglossal Nerve (Nerve #12)

What is the result of damage to the Abducens Nerve (Nerve #6)?

• Loss of bitter & sour taste & impaired swallowing

• Inability to rotate eye laterally & at rest eye rotates medially (medial strabismus)

• Impaired head, neck & shoulder movement

• Hearing loss

What is the main function of the Trigeminal Nerve (Nerve #5)?

• It is responsible for taste and smell.

• It is the main sensory nerve to the face and muscles of mastication.

• It controls the superior oblique eye muscle.

• It is involved in the accommodation process for near vision.

Damage to which nerve causes double vision and inability to rotate eye inferomedially?

• Oculomotor Nerve (Nerve #3)

• Trochlear Nerve (Nerve #4)

• Trigeminal Nerve (Nerve #5)

• Abducens Nerve (Nerve #6)

Which area of the cerebral cortex is primarily responsible for processing visual information?

• Primary gustatory area

• Primary auditory area

• Primary visual area

• Somesthetic association area

What is the function of the association areas of the cerebral cortex?

• They are responsible for primary sensory functions like taste and smell.

• They integrate and interpret sensory information.

• They control voluntary muscle movements.

• They are involved in the regulation of balance and equilibrium.