Hypoglossal Nerve

Question 1

is the hypoglossal nerve a motor, sensory or mixed nerve?

Answer 1

Motor

Question 2

where are the cell bodies of the hypoglossal nerve found?

Answer 2

Cell bodies located in the hypoglossal nucleus in the medulla

Question 3

What does the hypoglossal nerve innervate?

Answer 3

Motor to all tongue muscles except palatoglossus muscle

Question 4

what occurs with a unilateral lesion of the XII nerve?

Answer 4

1) paraylsis of ipsilateral tongue muscles
2) Deviation of the tongue towards the lesioned/paralyzed side when protruding (due to genioglossus pull the tongue out and towards midline)