Question

A 60-year-old with sudden unilateral facial weakness, including forehead muscles, is unable to raise the eyebrow on the affected side. Which nerve is primarily affected?

Accepted Answer

Facial nerve (CN VII)

Answer

Trigeminal nerve (CN V)

Answer

Glossopharyngeal nerve (CN IX)

Answer

Vagus nerve (CN X)

Answer

Accessory nerve (CN XI)

Practice question

A 60-year-old with sudden unilateral facial weakness, including forehead muscles, is unable to raise the eyebrow on the affected side. Which nerve is primarily affected?