XII Hypoglossal

Question 1

origin & level of hypoglossal nerve

Answer 1

hypoglossal nucleus (medulla)

Question 2

where does hypoglossal nerve exit the brain?

Answer 2

pre-olivary sulcus

Question 3

function of hypoglossal nerve

Answer 3

motor to all tongue muscles except palatoglossus (X)

Question 4

lesion of hypoglossal nerve

Answer 4

ipsilateral tongue paralysis and atrophy

Question 5

where does hypoglossal nerve exit the skull?

Answer 5

hypoglossal canal