Hypoglossal Nerve XII Flashcards
1
Q
What is the function of the hypoglossal nerve?
A
Somatic Motor function only- innervating the muscles of the tongue
2
Q
What is the anatomical course?
A
Hypoglossal nucleus is located in the MEDULLA OBLONGATA of the brainstem, the nerve leaves the cranium via the HYPOGLOSSAL CANAL
3
Q
How do you test the function of the nerve?
A
ask patient to stick out their tingue. this allows you to test GENIOGLOSSUS MUSCLE which is innervated by hypoglossal nerve and allows you to stick out your tongue
4
Q
What happens if the right hypoglossal nerve is damaged?
A
the left side of the tongue would protrude but not the right. The tongue would steer to the right towards the lesioned side
