Cranial Nerves

Question 1

Cranial Nerve I

Answer 1

olfactory (oh) (some)

Question 2

Cranial Nerve II

Answer 2

optic (once) (say)

Question 3

Cranial Nerve III

Answer 3

oculomotor (one) (marry)

Question 4

Cranial Nerve IV

Answer 4

trochlear (takes) (money)

Question 5

Cranial Nerve V

Answer 5

trigeminal (the) (but)

Question 6

Cranial Nerve VI

Answer 6

abducens (anatomy) (my)

Question 7

Cranial Nerve VII

Answer 7

facial (final) (brother)

Question 8

Cranial Nerve VIII

Answer 8

vestibulocochlear (very) (says)

Question 9

Cranial Nerve IX

Answer 9

glossopharyngeal (good) (big)

Question 10

Cranial Nerve X

Answer 10

vagus (vacations) (brains)

Question 11

Cranial Nerve XI

Answer 11

accessory (are) (matter)

Question 12

Cranial Nerve XII

Answer 12

hypoglossal (heavenly) (most)

Question 13

Every nerve exits from the brainstem except for which nerve?

Answer 13

CN I: olfactory

Question 14

Where are the sensors of the CN I olfactory nerve?

Answer 14

epithelium of nasal cavity

Question 15

Where are the olfactory bulbs located?

Answer 15

base of the brain

Question 16

What is the term for damage of the olfactory nerve (loss of taste & smell)?

Answer 16

anosmia

Question 17

CN I olfactory nerve classifier

Answer 17

special visceral afferent (SVA)

Question 18

CN II optic nerve location

Answer 18

midbrain

Question 19

CN I olfactory nerve location

Answer 19

olfactory bulb

Question 20

CN II optic nerve functions

Answer 20

vision, sensory

Question 21

CN II optic nerve classifier

Answer 21

special somatic afferent (SSA)

Question 22

CN III oculomotor nerve location

Answer 22

midbrain

Question 23

CN III oculomotor nerve classifier

Answer 23

general somatic efferent (GSE)

Question 24

CN III oculomotor nerve function (GSE)

Answer 24

eye motion

Question 25

CN III oculomotor nerve function (GVE)

Answer 25

reflexes (light adaptation and focus)

Question 26

Damage of CN III oculomotor results in what condition?

Answer 26

inappropriate eye motion

Question 27

CN IV trochlear nerve location

Answer 27

midbrain

Question 28

CN IV trochlear nerve classifier

Answer 28

general somatic efferent (GSE)

Question 29

CN IV trochlear nerve function

Answer 29

turns ipsilateral eye down and out

Question 30

CN V trigeminal nerve location

Answer 30

pons

Question 31

CN V trigeminal nerve classifier

Answer 31

general somatic afferent (GSA) & special visceral efferent (GVE) — both sensory and motor

Question 32

CN V trigeminal nerve branches (3)

Answer 32

opthalmic, maxillary, mandibular

Question 33

CN V trigeminal nerve — opthalmic branch

Answer 33

upper face, nose, eye, mandible

Question 34

CN V trigeminal nerve — mandibular branch

Answer 34

mandible (main muscle of mastication)

Question 34

damage to CN V trigeminal

Answer 34

motor: weakness on affected side (slack jaw, velopharyngeal port insufficiency); sensory: loss of feeling in all affected areas (anterior tongue, mandible, chew muscles)

Question 35

CN VI abducens nerve location

Answer 35

pond

Question 36

CN VI abducens function

Answer 36

innervates lateral rectus ocular muscle (side-to-side looking)

Question 37

CN VII facial nerve location

Answer 37

pons

Question 38

CN VII facial nerve SVE functions

Answer 38

upper face (bilateral innervation)

Question 39

CN VII facial nerve GVE function

Answer 39

lacrimal (tears) and salivary glands

Question 40

CN VII facial nerve SVA function

Answer 40

gustation

Question 41

damage to CN VII facial nerve

Answer 41

articulatory function, drooping or immobility of face parts

Question 42

which condition is linked to damage of the CN VII facial nerve!

Answer 42

Bell's palsy

Question 43

CN VIII vestibular nerve location

Answer 43

pons

Question 44

CN VIII vestibulocochlear nerve function

Answer 44

acoustic branch: auditory info; vestibular branch: position & acceleration

Question 45

damage to VIII vestibulocochlear nerve

Answer 45

acoustic branch: ipsilateral hearing loss; vestibular branch: balance disorders... causes: tumors (Schwann cell neuroma), trauma

Question 46

CN IX glossopharyngeal nerve location

Answer 46

medulla

Question 47

CN IX glossopharyngeal nerve functions

Answer 47

afferent: taste from posterior 1/3 of tongue; baroreceptors (pressure at carotid artery); touch, pain, temperature efferent: salivation, motor control of stylopharyngeus, sup. constrictor, pharyngeal mm.

Question 48

CN X vagus nerve location

Answer 48

medulla

Question 49

CN X vagus nerve branches

Answer 49

auricular (sensory for pain from ear) recurrent laryngeal (sensory for laryngeal mucosa, motor for intrinsic laryngeal muscles—except cricothyroid, and inferior pharyngeal constrictor)

Question 50

damage to CN X vagus, pharyngeal branch

Answer 50

dysphagia, hypernasality, nasal regurgitation

Question 51

damage to CN X vagus nerve, superior laryngeal branch

Answer 51

cricothyroid muscle paralysis (loss of fundamental frequency control)

Question 52

damage to CN X vagus nerve, recurrent laryngeal branch

Answer 52

paralysis of vocal folds

Question 53

CN XI accessory nerve location

Answer 53

medulla

Question 54

CN XI accessory nerve cranial component (efferent)

Answer 54

sternocleidomastoid and trapezius; with X vagus, intrinsic muscle of larynx and pharynx

Question 55

spinal component (afferent)

Answer 55

SCM and trapezius

Question 56

CN XII Hypoglossal nerve location

Answer 56

Medulla

Question 57

CN XII Hypoglossal nerve function

Answer 57

Innervation of the tongue: all intrinsic muscles, all extrinsic muscles except palatoglossus

Question 58

damage to CN XII Hypoglossal nerve

Answer 58

Serious effects on articulation and speech; All intrinsic 10 muscles, nearly all extrinsic muscles

Question 59

Nonspeech cranial nerves

Answer 59

``` I olfactory II optic III oculomotor IV trochlear VI abducens ```

Question 60

speech/hearing structures

Answer 60

``` V trigeminal VII facial VIII vestibulocochlear IX glossopharyngeal X vagus XI accessory XII hypoglossal ```