Cranial Nerves

Which cranial nerve is responsible for the sense of smell?

• Cranial Nerve I (Olfactory)

• Cranial Nerve II (Optic)

• Cranial Nerve III (Oculomotor)

• Cranial Nerve IV (Trochlear)

The oculomotor nerve (Cranial Nerve III) controls all of the following except:

• Eyelid elevation

• Pupil constriction

• Eye movement upward, downward, and medially

• Sensory function for vision

Which cranial nerve is primarily responsible for facial sensation and chewing?

• Cranial Nerve VII (Facial)

• Cranial Nerve V (Trigeminal)

• Cranial Nerve VIII (Vestibulocochlear)

• Cranial Nerve IX (Glossopharyngeal)

Which cranial nerve is responsible for controlling the muscles of facial expression?

• Cranial Nerve VI (Abducens)

• Cranial Nerve VII (Facial)

• Cranial Nerve IX (Glossopharyngeal)

• Cranial Nerve X (Vagus)

Which cranial nerve is involved in the sensation of taste on the anterior two-thirds of the tongue?

• Cranial Nerve VII (Facial)

• Cranial Nerve IX (Glossopharyngeal)

• Cranial Nerve X (Vagus)

• Cranial Nerve XI (Accessory)

A patient presents with an inability to smile and drooping of the corner of their mouth on the left side. Which cranial nerve is likely affected?

• Cranial Nerve VII (Facial)

• Cranial Nerve III (Oculomotor)

• Cranial Nerve X (Vagus)

• Cranial Nerve V (Trigeminal)