Cranial Nerves

Question 1

Give FOUR branches of the vagus nerve

Answer 1

Pharyngeal – pharynx and soft palate

superior laryngeal – cricothryroid of pharynx

Recurrent laryngeal nerve – intrinsic muscles of larynx

Cardiac branches, innervate regular heart rate and visceral sensation.

Question 2

List the main branches of the facial nerve and TWO muscles supplied by the nerve.

Answer 2

CN VII – Supplies obicularis oris, buccinator, mentalis

Branches – chordae tympani		
Greater petrosal nerve
nerve to stapedius
POSTERIOR AURICULAR NERVE
TEMPORAL BRANCH
ZYGOMATIC
BUCCAL
MARGINAL MANDIBULAR
CERVICAL

Question 3

Briefly describe the function or functions of CN IV (four).

Answer 3

Used for the superior oblique muscle of the eye where it provides motor function