cranial nerves

Question 1

cranial nerve functions

Answer 1

CN1-smells
CN2 sees
CNs 3/4/6 moves eyes, CN3 constricts pupils, accomodates
CN5 chews/feels front of head
CN7 moves the face, tastes, salivate, cries
CN8 hears, regulates balance
CN9 tastes, salivates, swallows, monitors carotid body and sinus
CN10 tastes, swallows, lifts palate, talks, communication to and from thoraco-abdominal viscera
CN11 turns head/lifts shoulders
CN12 moves tongue

Question 2

sensory cranial nerves

Answer 2

CN1 olfactory
CN2 optic
CN8 vestibulocochlear

Question 3

motor cranial nerves

Answer 3

CN3 oculomotr
CN4 trochlear
CN6 abducents
CN11 accessory
CN12 hypoglossal

Question 4

mixed cranial nerves

Answer 4

CN5 trigeminal
CN7 facial
CN9 glossopharygeal
CN10 vagus
all considered somatovisceral

Question 5

CN 5 sensory distribution

Answer 5

face mask, includes skin and deeper tissues

Question 6

function of CN7 and CN3

Answer 6

CN7 (hook) closes eyes
CN 3 (3 pillars) opens the eye

Question 7

parts of CN7

Answer 7

motor nucleus in pons to internal acoustic meatus, lacrimal gland, stapedius (sound dampening), taste (anterior 2/3 tongue, salivation, facial musculature

Question 8

pseudobulbar palsy

Answer 8

caused by bilateral lesions of corticobulbar tracts, (CN 7/12) causes difficulty with facial expressions, tongue motion, chewing, swallow, speech, breathing, inapproprate laugh/cry