7 - Head & Neck - Cranial Nerves 2 Flashcards Preview

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Flashcards in 7 - Head & Neck - Cranial Nerves 2 Deck (35)
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31

Which cranial nerve crosses the internal and external carotid arteries in the neck?

CN XII Hypoglossal

32

How is the hypoglossal nerve tested?

- Inspection of tongue
- Movement of tongue

33

If a hypoglossal nerve is damaged, will the tongue deviate towards or away from the side of the lesion?

Towards the side of the lesion

34

What is an acoustic neuroma?

A benign tumour around CN VIII

35

If the CN III nerve is damaged, why is the first symptom loss of pupillary constriction?

CN III autonomics 'hitchhike' on the outside of CN III, therefore first to be damaged.