Your patient is unable to differentiate soft touch to the left side of her face, including the temporal area, her cheek and her chin. You should suspect:Group of answer choicesDamage to the left trigeminal nerve.Damage to the right facial nerveDamage to the left facial nerveDamage to the right trigeminal nerve
Question
Your patient is unable to differentiate soft touch to the left side of her face, including the temporal area, her cheek and her chin. You should suspect:Group of answer choicesDamage to the left trigeminal nerve.Damage to the right facial nerveDamage to the left facial nerveDamage to the right trigeminal nerve
Solution
Damage to the right trigeminal nerve.
Here's why: The trigeminal nerve is responsible for sensation in the face. Because the body's nervous system is largely contralateral, damage to the right trigeminal nerve would affect sensation on the left side of the face. The facial nerve, on the other hand, is primarily involved in controlling muscles for facial expressions, not sensation.
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