[FA STREAK] Quiz - 12 pairs of cranial nerves

A 32-year-old male presents to the clinic complaining of double vision (diplopia) when reading, particularly when trying to look downward (e.g., reading the bottom of a page). On examination, when asked to follow the doctor's finger as it moves downward and inward toward his nose, his right eye fails to move downward properly.
Which cranial nerve is most likely injured in this patient?

• Oculomotor nerve

• Trochlear nerve

• Abducens nerve

• Trigeminal nerve

A 65-year-old male involved in a car accident complains he can no longer smell coffee brewing. MRI shows a fracture of the cribriform plate. Which cranial nerve is damaged?

• Optic nerve

• Olfactory nerve

• Trigeminal nerve

• Facial nerve

A patient with Bell’s palsy cannot wrinkle forehead or close the right eye. Taste is lost on the anterior 2/3 of the tongue. Which nerve is affected?

• Glossopharyngeal nerve

• Facial nerve

• Vagus nerve

• Hypoglossal nerve

A diabetic patient presents with sudden vision loss in one eye. Fundoscopy reveals "blood and thunder" appearance. Which nerve is affected?

• Oculomotor nerve

• Optic nerve

• Trochlear nerve

• Abducens nerve

A patient with a posterior communicating artery aneurysm has ptosis, dilated pupil, and eye turned "down and out." Which nerve is compressed?

• Trochlear nerve

• Oculomotor nerve

• Abducens nerve

• Trigeminal nerve

A patient has stabbing chin pain when brushing teeth, with noticeable jaw weakness. Which branch is affected?

• Ophthalmic (V1)

• Maxillary (V2)

• Mandibular (V3)

• Facial nerve

A patient with acoustic neuroma presents with unilateral hearing loss and vertigo. Which nerve is compressed?

• Glossopharyngeal nerve

• Vestibulocochlear nerve

• Accessory nerve

• Hypoglossal nerve

A patient cannot shrug the right shoulder or turn the head to the left. Which nerve is injured?

• Hypoglossal nerve

• Accessory nerve

• Vagus nerve

• Glossopharyngeal nerve

A patient’s tongue deviates to the left when protruded. Which nerve is lesioned?

• Facial nerve

• Glossopharyngeal nerve

• Hypoglossal nerve

• Vagus nerve

A patient with a brainstem stroke has loss of gag reflex and impaired taste on the posterior tongue. Which nerve is damaged?

• Facial nerve

• Glossopharyngeal nerve

• Vagus nerve

• Hypoglossal nerve